Exhumed: Strange Eye

Here is a simple sketch of a nonhuman eye.  As I was working on it, I wanted to do more than just add color to it.  That's where the shading and bubbles came in.  I tried to give a subtle sense of structure to the "head" that houses this eye.  Obviously a larger creature but it's exact nature we cannot tell.  You can bet though that there are tentacles involved!

{8x6.533,  Graphite with color added in Adobe Photoshop}