Well done, Ben!
Little hint for you. When you're developing your pieces think about potential "jobs" for them. For example, in this game you've developed your Queen to d2, but Qe2 was much better choice, becouse of his weak light squares (which you've mentioned in your analysys).
I just posted this new game analysis, only 15 minutes long. It's a great example of how following opening principles (while my opponent did not) gave me an overwhelming advantage once hostilities commenced.
I'm really focusing on principled play right now, particularly in the opening first 10 moves.