Hi there! I saw you requested critique and I'm happy to help. I'm no professional but let me see... First of all! I would like to say you have a very sound understanding of anatomy and proportions, which is excellent, the elbows and legs bend as they should. I think the shading colors could use a bit of work, it looks to me like you shaded with black or at least grey, I recommend not using those colors and instead switching to more natural looking ones! For instance, light blue on white might look nice. The yellow nose stands out a lot compared to the rest of the picture as well, but maybe you want that to be the case, I'm not sure. Another thing is that the feet look too latprge to me, but if it's done for style reasons then I say, keep it! Hope this helps! ^_^