Resistor values are fine and really anything less than 400KOhms-800KOhms will work fine. Generally, we like 1k to 10k range.
Also with using a 10ohm powered off the FB, you could be drawing a ton of current worst case scenario and depending on everything else in your system, that much could make it unstable. If that happens, you may need a separate 7805 to power one or both of them.
Sounds like you have a grasp on what you are doing, and the skin screenshot looks great so far!