I'm working on her bird blocks now (I usually incorporate them into other quilts rather than repeat the same animals throughout the entireity of the quilt). I like making the blocks, as I think of them as putting together a puzzle. I put all the pieces for a block in their places on a large homemade design board to (hopefully) ensure that all the pieces are in the right place. But I still make mistakes - most recently, the right cut of fabric, just oriented 90 degrees off. Easily recut.