Looks nice. I think the gradients should have been brushed because they look too smooth and don't really match the rough pencil edges (especially on the grass, it doesn't look grassy except where it's already penciled in). Coloring and shading looks fine on the pants though, I'm assuming that's because the shading was already done in pencil. The drawing itself requires no critique, it's awesome (squirrel with the brush tail haha). I think you should keep trying more in color, there's tremendous potential.