Try a colorful fun print in a valence....


http://houzz.com/photos/5789310

I think the example beachlily posted is perfect.

I like it! Thank you.

This look might be nice also. http://houzz.com/photos/3637933

The valance is a great idea, notice the trim work that finishes the look, doing the same with your window will make it cohesive, match the trim of your sil and bring it higher than the window, it will bring the window and cabinets together.