Hi guys, I have created some line art for a custom illustration using AI CS6. I'd like to apply some shading using gradients within Illustrator. Was wondering how I can achieve a similar effect to the attached image (which I crudely shaded up in Photoshop just to give the idea of what I'm going for). When I try using the gradient panel in Illustrator, all I see is 'linear' and 'radial', neither of which achieves the effect below. Please note that the shapes I will be shading are not strokes, they are just shapes created using the pen tool, with a fill color applied. Reason I mention is bc I realize there are some different gradient options for stroke paths, however that's not what I'm using here. Thanks in advance.