What part of Diana's legs did you shave down? I've been thinking of wanting to do something about her height too, just haven't had the time to sit down and figure it out yet. Also nice JLA Setup. I've got pretty much the same setup only with a modified Hush Superman and I made that Knightfall Batman more of a Year One style. Shaved off the symbol, used the larger bat symbol and Belt from Hush Batman. I've got the Cyborg BaF in there but I'll probably swap him out as soon as we get a better normal sized one.
The only Aquaman figure that I do have is the 7 inch scale Page Punchers Aquaman figure but I think your very own Aquaman custom looks cool because I prefer Arthur Curry clean shaven and short hair and not with long hair along with a beard at all.