Yours are very nice but I do not think they are bowsers. They look similar but the green/yellow contrast is different from bowsers. Your palys seem more profound on the cut-off, whereas the bowsers seem to overlap with the green/yellow. Bowsers definitely look different in person (theres a pic on zoaid that has them next to CARs).
I am sure a lot of people will agree and say that they are bowsers, but there were very few released from Jaypainter. I saw the original colony and it wasnt huge by any means. I believe only a handful of people got them. (I have seen a few for sale that were not them but labeled as them for a premium price so buyer beware)
When everything is said and done, a paly is a paly. Buy what you like. But its probably best not to go and call them and sell them as Bowsers to other people who honestly believe they are the lineaged ones. Of course there are people that will say "everything came from the ocean" yada yada yada, but true collectors that are willing to pay a large price probably want the real deal just so they can have trade/sell value for them later on. just my 2 cents