So glad that it's a technique! I worked at a craft store at one time and the owner, who had just started quilting, made a wall hanging she found in a magazine. It was way over her head. My job was to simply put sashing on and finish. Egads! So I squared up the blocks the same way you made the log cabin block, trying to make it look like it was done on purpose.
I love the fabrics you used for the blocks, perfect!