I run an introductory computer science course at a high school. Through Microsoft's tealsk12 program, I can get a set of t-shirts printed for our school, customized to the school. However my specialty is not design as you can see in pic related. Is there any advice you can give on how I can improve my designs? I want to make something my studeants might actually wear, and I'm not exactly in the loop when it comes to fashion. tl;dr: How2Design shirt