Hey Leanrdo, I like your painting, and the separation of dark and light works really well. The things I noticed had more to do with perspective and design. To start with, the flowers and rocks around the character are too uniform and evenly spaced. The flowers also look like they are just popping out of the ground without any leaves or foliage. Everything on the ground feels too separated and not enough of them are overlapping, loosing depth. The other issue is the sheep, they are out of perspective. They do not look the right size in comparison with the stone henge rocks. They look way too big and out of proportion. As far as the figure, I think she looks fine, but she lacks some gesture that could make her look a little more interesting. I did a quick sketch to show you about the perspective and the character, I hope it helps :)