A bull model I have done in blender 2.5 from a 2d sketch of mine. No sculpt, only quad modeling, multitextures, area lights and blured reflection in the Blender internal renderer.
Check my new tutorial on Ambient Occlusion cool tips with MentalRay. Use google translate to read it in English You can check out this interesting post from Zap about the same subject (but I cant achieve a good render with his technics )