I much prefer a directional quilt than all the tee's going every which way. To me, and probably only me, showing them going in all directions shows no order. It makes me anxious just looking at it. OMG....I know I am getting old now! I like to be able to read all the tee's at one time, not be tilting my head back & forth.
I haven't made a tee shirt quilt yet, but the ones I like are the ones that have different size tee's with sashings that spotlight each block. Pick your daughter's favorite color as the background. Sash the tee's with a color that contrasts really good or many colors. I kept this picture of one that I just loved. It has order and different sizes of tees and variable spaces in the background, the better to put quilting in. I wish I could give credit to whoever designed & made this quilt, but I wasn't smart enough to keep that info.