definitely not do straight lines across the quilt. I would consider straight lines from top to bottom. This is fast and keeps the modern look. However, I like to soften the lines by quilting a curvy pattern and crossing the lines with the thread. Baby quilts are great for learning a motif , like feathers. Babies don't care how those feathers look, and I guarantee your feathers will improve by the end of the quilting. I could do flowers also. I do know I will change colors with each row. So I will let it "stew" for a few days and keep you posted on my final decision.