a handy calculator for temperature correction. (1.049 @ 70F = 1.050)
Your volumes look pretty good. I also like to mash between 1 and 1.5 qts/# of grain depending on the beer. The higher the gravity the closer to 1qt/#, in order to give me more water to sparge with.
The recipe probably assumed a brewhouse efficiency of ~75%. Sounds like you got closer to 63%, which is pretty common for your first time brewing all grain. Every brewer has different equipment and a different process and gets different efficiency, so you'll have to brew a few more all grain batches before you get your system dialed in. After that, you can adjust the grain amounts from a given recipe to account for your anticipated efficiency, and nail your gravity every time.