I had an answer until I saw the part 'my first pieced quilt'. Whatever pattern you choose, I would suggest doing it on a diagonal. Trying to line up assorted plaids and not make them look off is tricky. But, on a diagonal, they already are wonky so it doesn't usually mess with your eyes. If the plaids are all really different sizes and patterns, really consider sashing to let the eyes rest. I didn't look at your patterns because I wanted to give you some general advise. Whatever you choose, try a couple sample blocks before jumping it. Especially with Pinterest, they could be more difficult than they appear.