I've been studying the topology on game characters from various games and the one I built for this character was the one I found best (with some adjustments tho). When it comes to the knuckles, it all about keeping the shape when deforming. And on all fingers there are 'volume'-loops, which makes them less "tube-like" ;D
Final update! I tweaked it even further added some more stuff both on the normal map, specular map and on the gloss. Thank you all for the critique and I'll improve my texturing skills for my next character. I'm throwing in the bucket on this one : )
nice design. very minimalist and sleek. a bit of advice tho. you might wanna think about the specular on your next project if you are done with this one. the materials on this character are all reading the same finish. the spec really can change how we read the material surface, whether is be metal or fiber. good luck!