All of those fish would FIT in a 55 together...the only question would be if the dottyback would get along with everyone...specifically the possum wrasse...they are VERY skittish and hide Alot if there are any aggressivee fish...and wont even come out to eat... so personally id remove the wrasse..and get a flasher wrasse or an anthia instead...other than that..your good..
one question though..are you going to have any corals? The dwarf angels are usually okay with most corals but do tend to pick on certain ones...