Trying new things!

I spend a fair amount of time looking online at photos for new kinds of inspiration. I've come across a few times photographs of people's eyes at extreme closeups. I've always been fascinated by them, but kind of assumed they had specialized equipment such as a microscope camera or something along those lines. However, being cold here and with nothing else to do I thought I'd give it a try. Using a 5d mark iii, 100mm L macro and a couple of tube extensions I came up with this

While I don't have the most interesting pupils compared to what I've seen I was surprised at the amount of detail involved in my eye.

I would also like to note my appreciation for the shots I've seen around the web. I'm sure this might be easier with a model, but this is a very difficult shot to accomplish. With the macro and extensions the slightest movement from the subject and the focus won't be ideal. I'm pretty sure the great shots I've seen have been focus stacked, but the ability to shoot one's own eye and stack multiple photos is out of my reach for now...