Mike Nieves’s (retinence) Protoman creation from Megaman is instantly recognizable and can strike an awesome pose. The variety of large curved slopes works out well in a creation of this scale.
This mosaic, by Andy, is a real eye-catcher. I love the split view of MegaMan and the background gives it a great look.
Marcos Bessa also built a scene from Megaman in 3D. The combination of studs in different directions works out well, but I think the waterfall would look better if it were built with plates placed sideways (at the same time costing much more). Overall, this is an interesting creation; check out the gallery to see the original screenshot.