Block # 4, hot off the iron!

So I'm working backwards a bit but it just made more sense for me to get block 6 done before block 4. It was smaller and easier. This block is another big one, measuring at what should be 20.5 inches square. Mine is a little off and it's made me a bit nervous. I hope I don't have to redo it when it comes time to putting the quilt together. I still need to put 1.5 inch sashing on the top and bottom so I'm going to take a closer look at how off my measurements are and maybe add an 1/8 inch to the sashing so the block comes out to the correct size.