Proud of this Game-Ending Sequence

I don't post a lot of this kind of thing, but I was really happy to find the moves that ended the game here after a sloppy opening (still learning King's Pawn stuff, and hadn't played against a Sicillian yet).

Opponent resigned in this position where I either win the rook on b8 after pawn to d4, or checkmate with Qh8 with nearly any other move. 

Unusual opening, but it seemed to have worked.

Yeah, I'm still learning the King's Pawn openings, so my approach to deal with the dragon was definitely "wrong," but my opponent let me share control of the diagonal and let me dictate with the knight. Once he lost the dark-squared bishop, the game was in my control imo. 

You seem to have had a plan, which beats a non-plan 9 out of 10 times.

Definitely true. I'm unsure why he allowed me to rotate the knight and trade it for the bishop while also displacing all his piece coordination. Maybe he thought controlling the light squares was just as good. The big thing was he didn't use any of the tempi used in the knight's rotation to create counterplay.