Love the last two! Those are actually the colors I have picked out, pink/brown/creme for a girl or blue/brown/creme for a boy, so you've got good taste
I love 3,5 & 6. I think #6 could be gender neutral since its blue, brown and creme. I know my mom went with blue when doing my nursery way back when and it was really nice because I kept my walls blue pretty much till middle school as it went nicely with my bedding choices as I grew up.