Beautiful! I had to look closely to see that it was a log cabin . The all-white half of each block really changed things! I bought that same ruler (C Grids Trim Tool) for an upcoming LC I'm doing. When I watched the YouTube demo of it, I knew it would be worth the money. You only have to make the center piece a perfect size to start . After that you can use irregular strips and trim the excess. So much easier than measuring everything first!
Congrats on the new great niece! Your quilting is lovely.