Crappy umbrella drawing

[Rognoll]

OK, I'm new at attempting "realistic" (If it can be called that) stuff, but here's a painting I've been foing for a few days. I had no idea how to to clouds, so I spent days trying to render them properly. It still sucks, but it's way better than the first ones. Anyway, what's your opinion on this? I need critiques.

Thanks! :D