Working on my Header and Blog Image

So, I've been trying to figure out how to make a header.  In doing so, I played around with some names and images.  I decided on The Learning Lab--as a play on learning, science, and my dog (a lab!)
I'm in love with my iPad app ArtStudio.  It's really fun and fairly easy to use.

My first true love and inspiration--Oscar :)

Check out some of my ideas:

 Oscar in a graduation cap:

 Oscar in goggles... I still need to work on these:

Oscar in a lab coat--I'm going to work on a better fit!

Any other ideas on how to make him look like a "Learning Lab"???