The left one I would have to call unknown. Growth looks something like a Ora yellow fuzzy
Middle could be a birdsnest but because of what looks like flat growth tips maybe blue/purple montipora digitata. Although if that last picture is it then probably a guttatus birdsnest that grew really sprawled with minimal branches.
Right might be a garf bonsai valida but could be a tricolor valida or purple nana.