I guess people are soon gonna start asking me, "dude, what is it with you and arms?" The thing is, arms are difficult to draw, especially well muscled arms as you've got to know where all the muscles lie and how they twist when the arm moves. Therefore my mantra at the moment is, 'draw enough of 'em and eventually you'll remember how they go!'
I don't know why but I've got this thing in my head at the moment about being too slow as an artist and I really want to speed up without the artwork suffering as a result. Therefore, in my head, I reason that if I practice enough it'll become second nature! Whether this idea works or not remains to be seen!
Oh yeah, there's a couple of legs on there too! Just for good measure.