I recently got commissioned to make a full sized version of my gender neutral baby quilt and I just finished the top. It's clearly inspired by a stacked coin quilt, but I like wider and fewer columns than you usually see.
I made some changes on the color scheme in order for it to read a bit more adult than the baby version. There's still the same warms (orange & yellow) but I have more blues and greens and also added the chocolate brown - it reads a bit dark in the photo... The plan is to also bind it in brown. I really really love brown as a neutral and I think that combined with the bright colors and white sashing/framing, it makes the quilt lively, yet grown up somehow... I can't wait to get the back made and then quilt it to see it all come together!!