I LOVE making the X-blocks quilts! It's a lot of fun, but you can't be a perfectionist with them. When it says to press the seams open, it really is the best way to go. The lighter colored one I made for my husband. The darker colored one I made for my boss, who's a rancher. If you look carefully, you'll see cows, barbed wire, brands, etc. The secret with X-blocks quilts is where you put the light, medium and dark prints.
Have fun with it!