nice idea, i think u make the rain straight and symmetrical for a more graphical effects? not too bad! in my opinion... anyway u can try out with other colors combination :) good job
cute! but his tail bothers me. I think it might look better at its beginning if you echoed the smoother way his neck attaches to the body.
the way you placed the feet by cutting out the grass blades is cool...have you tried doing the same a couple of times where his tail touches the ground? like, starting at that point you added to the tail under the rear foot, between the 6th &7th piece of grass (counting from left to right)? it might end up looking too busy but I think it would be worth a try.