It's great your paying attention to even the smallest details. Remember to consider where the hardware placement will be best functionally. We see people replacing hardware all the time, because they hit they're knuckles opening drawers or something. Post a picture after you've installed the hardware. Good luck.

IMO, this is such a personal preference. For my likes, the handles should be centered within the height of drawer face. And for the drawers you show i would like two pulls per drawer.