Nice lineart, as usual - I like the varied lineweights. something about his feet is making his pose seem very off-balance and wobbly. I think it's because HIS right foot (on our left) is at a strange angle, especially if you compare it to the kneepad on his right knee. Also weird compared to his left foot. It doesn't look…
Hmm. I still think the angle of the foot should be changed. It's not just the balance that's off, it's the anatomy, there. I've never seen anyone stand steadily with their foot at that angle. What you've done is an improvement, but IMHO not enough of one to stop his stance looking odd. I also think Usagi has hit it right…