Basically a great image for us to see the real awesomeness pack the lovable bear and bird brings to us. I totally love the background, very well made and looks even textures. The Sun looks real, and it's reays even more, the clouds and whole lighting brings a feeling of adventure and nostalgia to the pic. Not to mention that it looks direct and serious at the same time. Nevr seen Banjo and Kazooie in a really serious mood. Your skills with expressions are getting better and better, one thing to notice is that I feel that the backpack of Banjo is in an awkward possition, I feel it that way, I'm not sure if it makes sense at all.
Ever tried for lineless painting? It's really good, you should try it.