Yeah, I looked at Marisa in-game model (and compared her to Zangrief), and while both are hulking mass of muscles, her body is still more "femine" with more accentuated chest and slightly wider hips, while Zangrief is more "blocky", especially in the waist. While in this artwork she obviously looks much more "fanservice" original still is pretty distinct. She looks like exaggerated female kickboxers.
Buy honestly I hate her helmet-hair :p