what percentage flavoring did you use for the white peach? With single flavor juices, it's just about getting the percentage right and, of course, if you like the flavor or not. If you like it, you should make another 10ml batch right away and let it steep for a few days to a week . .you might find it changes - for either better or worse. If you still really like it after steeping - then mix up a nice big batch and write down the your recipe for this one.
Welcome to DIY! Be warned - it can become quite an obsession. For me, it's bigger than all other aspects of e-cigs combined.