way too many colors! for a sprite of that size, you're making everything blurry rather than smooth, wich in turn makes the cockpit stand out as it it wasn't part of the plane(not to mention the green shine is completely out of place too)
i'm pretty sure i'll look way better with a palette more focused on contrast, and/or a less forced outline trying to define shapes.
Really nice! But the light source is on the "wrong" side, according to me. :)
Your orchid bomber is really great as well!