here's a bit of crit, but not much: the pose is very stiff, just look at all the straight lines the pose has, instead, the pose should be dynamic and playfull, so it kind of traces arcs and bends. the sewing lines could be different to, like the mouth, it has a vertical sewing line, while in real world, it would be horizontal, thats just a logistic. the bump map is not bad, but it has some streching here and there.
as for the walking stick, you could have made him hold the stick with it's front leg or something, while in a dancing pose, this will give much more feeling and emotion to the picture.
the lightning is good but you should try and experiment with more lightning instead of just a skylight.