this kind of reminds me of Naoto Tenhiro's art style, but no particular series comes to mind...
I noticed with the eye's coloring, you are experimenting with meshes! From how the iris is rendered, I think the the entire eye is the mesh object. Since I am only starting out using meshes, I take my recommendation with a grain of salt.
Use the box tool first, and make a small box around the region you want to use the mesh. Next, use the mesh tool (i
prefer the corners) and reposition the corners more or less where you want to. And adjust the bars too to make the the
shape like you want. Now just start adding mesh points inside the object.
I can't really explain it very well, but I got the idea/inspiration looking at http://www.creativebush.com/tutorials/mesh_tutorial.php
I think there is a video or animated image that can explain this a lot better.
Anyways, it looks like your more adventurous with the tools in Illustrator than I have been. Good job.