Bear Painting Sketch

here's more of and idea of my next painting.
Though I still need to do some research to capture what I want correctly.
Ive already bought the canvas for it, I'm in the process of gessoing and sanding it. I want it super smooth! it will measure 24X30" and is convex, which just means the corners are rounded.
I want to draw it all out correctly first, so that the real painting is a bit easier to go through.