Ferrari California drawing

Hey artists. I saw many video tutorials and also videos showing people drawing their concepts. Very nice ones were created in Photoshop. So i desided to do some improvements with my drawing skills. I had some success in past with drawing traditionaly with pencil and paper but i lacked at computer version. So this image here shows the result. My main target was just to be able to handle colors and blendings little bit more. I learned a bit how the reflections are working on bend surfaces.