Since you're using a weird style alot of stuff is going to be subjective, but I really think he could have done with far bigger hands and much thinner legs. Or perhaps much thicker arms to counterbalance the legs?
Honestly, you can draw people with limbs like spaghetti at this point, it's all about image balance.
Right now it sort of looks like his legs are in an upwards perspective whilst his upper torso is not, at least to me.
Hope my input isn't too much of a bummer. -_-