I figured out the measurements and decided to keep the colours über simple, just like in the original. The dots were chosen to add some playfullness. I'll quilt it quite densely with orange thread. I think it will make a fun boy's quilt.
Now I have to look for some flannel to make the back, I'm searching for a Folksy Flannel print that is just the right colour, but they are increasingly hard to find.
I found out that Amy from Diary of a quilter sells a pattern for this quilt. It's called Chain linked modern quilt pattern and her version is charm pack friendly!