It is great how you are working with the colors, lighting, shadows, really great. Please, create full design for gnome desktop enviroment (For example in Ubuntu)! It can bet it would be the best theme for this system.

Thank you for creating this art. It is very nice and soothing -- the composition, the color and the background texture. The stylized birds in flight remind me of the LXDE logo: http://tinyurl.com/2fnokzr