So...
My .02
Sixline wrasses are terrors. I would avoid them at all costs. They're mean and consume things that you would rather have a cooler fish eat (such as pods).
I have experience with nearly all of the fish you mentioned, and since you are new to the hobby (I am 12 years in and own 3 tanks at my house and maintain 3 at my parents) I figured I would offer you some advice.
Here is your list:
- 6 line wrasse (1 or 2?)
As mentioned, I would avoid this species at ALL costs. I will make some suggestions for better wrasses later.
-tomini tang
Most people buy tangs for their beauty, this particular tang is not as colorful or vibrant as others - but is a good size and a relatively easy fish for a beginner.
-blonde naso tang ( I know it will get to big but I was going to look for a smaller size one and when it gets to big I do have somewhere to take it)
These can be difficult, especially in smaller systems (My 125 where I house my 4" Blonde Naso is too small and I will move her to a 180 for a year shortly and then sell her and buy another one after that but they're slow growers IME.) Blonde naso are not a beginner tang, they're docile which is nice and unique in coloration and shape. You're likely to have trouble keeping it in anything less than a one-two year old established tank. They also do better in reef tanks in my experience. IF you decide to do it anyway, I would give the tangs access to enough nori that they can graze on it 2/3 of the day and get fat. Rubberband it to rocks. I find my tangs prefer the human consumption nori from the grocery store better than the stuff you buy at your local fish store. I also drip some selcon on mine to stimulate feeding and good health.
-one spot foxface
FYI these are very poisonous if you touch their dorsal fins. They can get somewhat large, but are probably a decent addition. Good yellow addition. They're also very hardy but still may struggle in a recently set up tank (less than 3 months old). Once established, they're tough. Some can be aggressive towards tangs. Since you want two tangs and a foxface, recognize that you have three herbivores in your tank. They will need LOTS of nori and greens to be happy. They may also bicker amongst eachother. My magnificent foxface and my hippo tang used to disagree often.
-coral beauty angelfish
Great choice of angel. They're probably the hardiest centropyge angel. They also can get aggressive. But, good color adding purples to your tank.
-green/red/spotted mandarin (if any which would be better)
In anything but a very established reef with LOTS of pods this will be certain death. The best way to cultivate pods is with a full-blown refugium. They like to live in live rock and chaeto in a refugium. They can breed there and will provide pods for a mandarin. I would definitely hold off on this AT LEAST a year. The target mandarins IME are hardiest although the Red is the most beautiful.
-pearlscale butterfly fish
I have tried these fish SEVERAL times throughout the years. I have never kept one longer than six months and I have several difficult and expert only fish that thrive in my systems. I am not sure what the issue is, but beware that angels and butterflies often bring flukes in to your system. You will want to treat with prazipro (separate threads all over for how to do this properly). I would wait on this until at least 6 months of being stable and established. They also do better in reef tanks (Ironic because they're rarely reef safe).
So here is my suggested list, using fish from your list that I personally would recommend. As a side note, I plan my tanks based on color. I like to have some of every color in every tank. It's an OCD thing but I think it looks great (see the video I will show you at the end of this "essay").
1) Tomini Tang (although you may consider instead a 1-2" hippo tang (after a few months) or a sailfin tang (after a couple months) but if you like this one go for it.
2) Blonde naso (although the tang suggestions above are good too. If you can swing the coin, purple tangs are very hardy as well)
gray fish
3) One spot foxface (
yellow)
4) Coral Beauty Angelfish (could also look at any pygmy angel they're usually tough as well. Flame angel would be awesome but they're far more challenging but pick ONE or at least three centropyge. Two is generally a recipe for disaster) a good
purple addition with some orange
5) Flame Hawkfish (for
red) OR Longnose Hawkfish (less red but very cool fish nonetheless)
6) If you insist on
white fish, get a sand sifting goby of some sort. Diamond sleeper gobies are good.
7) Ocellaris and a black ocellaris clown (Mix them). Brings
orange and
black to your tank.
8) Melanarus or Vroliks Wrasse -
Green and patterned. Will bring green to your tank and are generally model citizens with lots of personality. I am a wrasse geek but this is a good suggestion, IMO
9) Orchid Dottyback - Not aggressive like other pseudochromis/dottybacks and generally hardy. I would wait until the tank is 3 months old to add it though. Do not get a purple dottyback. Similar but not as friendly or pretty. Here is
pink!
All you're missing is
blue. I still suggest you cut out the Naso for a Hippo at some point. But it's your tank!
Here are my three tanks, The first one (tang tank) is for the first 40 seconds, the second shows my wrasse tank which lasts over one minute, the last is my angel tank.
Put in 720P HD for best results!
https://www.youtube.com/watch?v=SBX5l1gPz84&list=UUhmnW5j3uL-ehguWWB00wbA
(Attention to detail, planning, and OCD work well for tank planning

)