The theme for my daughter's nursery is the Nightmare Before Christmas, focusing on the character Sally. The room isn't finished yet, i'm making some other wall decorations for it, but the letters are finished! Once the room is all done i'll post pictures of everything.
I painted the letters in the pattern of Sally's dress.
Before:

During:


After:

I did the stitches using puff paint so they'd pop out from the 'fabric'



I used the below photo of a costume for reference, as well as a Sally plush that we have.
I put the picture of the costume together with a white balanced picture of the finished letters for comparison.

Still in the works is a Jack stool, a wooden Zero for the wall with a light up nose ( about 2ft by 3ft) and a wall hanging of Jack and Sally ( which will be about 3ft by 4ft, i'm making that one last!)