The HDR photography might make them look a little too much like action figures, but that's a niggle. Everything else about these two, from the photography to the "acting" to the outfits, is just about perfect.
The Dutch pair, dressed as Connor and Aveline (from the Vita's Assassin's Creed III: Liberation) respectively, were so impressive that Ubisoft invited them to come in and play Assassin's Creed III early.
To really get an idea of how impressive these outfits are, check out the detail on the close-up shots of the weapons and accessories. Mind-blowing.