Everything is going great! Johan just sent me the music of the first levels, and it sounds awesome! I thought I could put here a link to the menu music so you could listen jow awesome composer Johan is!
Also, I've been doing some huge improvements in the graphics and the levels. I've added more animals here and there and finally made some shading. Here's an example for how much better it looks:
As you see, level 2 really looks better now (at least IMO).
I'm going to do some more updates to everything (I must add many more animals there, the levels are too empty still).
I think it's a good idea to add shading, but it might look better if you added some kind of diffusion so it doesn't look like you've gone over it with 25% black.