yea i kept the fact that it was going to be screen printed in mind. Im actually glad you pointed it out. Although mine are detailed, they are all thresholded and posterized. That is, all the shapes are rather solid and while it gives detail, it doesnt use gradients or anti aliasing. I think the main thing is to not have gradients or too photo-realistic elements. Two tone elements are great. If you look at threadless.com or like designer shirts from Armani, A|X, or Deisel, you'll notice a lot use photographs that have been converted to none halftoned two tone images. Using negative space looks good i think. I also tried to keep in mind the shape of a shirt is going to be 3d so i planned acordingly. If any of my designs look a bit low on the shirt, its because when you wear it, your chest comes out and lifts the design up a bit. Also, the area directly to the left and right of the neck hole will be facing the ceiling not the viewer. I also left the back plain as a lot of people will be rockin hoodies and jackets. I put the logo down low so if youre rocking XXXXL Tall, maybe, just maybe, the logo will stick out.