First off, I would consider +/- 2 stones near in rank, especially in the DDKs. Upwards of 4 stones is where I think you're starting to play with significantly stronger players. If you don't normally play handicap games (either as black or white) you should, as it will teach you different ways of thinking about the game. Playing black you (hopefully) learn to use influence to attack weak groups. Playing as white you learn how to build light positions in enemy moyos.

Second, it's hard to review a game where you were white in a handicap game and won. None of the mistakes were too fatal, eh? On top of that, handicap games tend to be white playing weird and black trying to cope. So right away reviewing for white is difficult. Like approaching at F17 instead of R14 or F3 would maybe be suboptimal in an even game, but in a handicap game maybe you want to create lots of groups and fights everywhere. So every 'mistake' might really just be a 'trick' to get black off guard and out of his comfort zone.

You should post a game where you were black with a handicap and lost, or an even game that you lost or was at least pretty close.