Looks good to me.
My first (and only) rail fence is not assembled. I was working on it late after a long day of work and I was cutting apart the strips and cut them to the finished size -- so one dimension is 8" and one is 8 1/2". Sigh -- I take the blocks out and try to see how I could trim them to make it work, but then I put them away for a while (sigh).