Woah =, love the room design! serious mass effect vibes here 
Also, good job on the figure studies, you are really showing great understanding of the 3D forms, the shapes and showing good restraint with your lines, applying very clear lines that help read the figure well, so just keep at it!
As for gestures, I know how you feel, it happens to me as well, there are days I just don't "feel" it, like I am going through the motions and they come out, not so good. I think it's normal, just keep practicing it, and be aware of your off days. Not sure what to do about off days, for me it's stop doing art sometimes and just watch a movie or exercise, then I come back to it refreshed but ymmv
cheers!