Ideally - yes. Practically we need to choose appropriate number of polygons accounting how close camera in a regular game can be.
Also I think baked AO shouldn't be so black as the human skin has significant subsurface scattering. So I'd make it warmer and leave darkening to normal maps.
About normal maps in terms of the engine: they shouldn't contain noise as it's not good for compression quality and might lead to light flickering on our general scale.
Superb! Tiny little observation: the lower bowstring of the lower image does not end at the bow but at the ring at the bag or arrow holder or whatever it is.