First of all, it looks great for just a 2nd block!!!!!!! You did really well!
Second, I've learned the joy (and pain) of using forked pins to match up seams. The joy is that, if you do it correctly, you always have matched up seams. The pain is I haven't managed to learn how to do it correctly with every seam. But most of them work.
If you have questions about how forked pins work, pm me, and I'd be happy to help.