Deciding on a Background

In part of my video I have the desktop of my laptop visible - so I decided to make a background which shows that I'm not a student but a scientist working on a big project. I spent a bit of time in Photoshop trying to come up with something original. Here are some of the designs I came up with...

The design at the bottom is the one I chose in the end. You can't really see it in the video but I thought it would add a nice touch. My favorite part is the little rat I drew. It seems to make the text seem a bit more 'logo' like. The swirly shapes in the corners are meant to tie in with the Victorian theme of the poster I made a while back.