M.L.
I paint frames all the time. If I were you, I would lightly sand paper the frames to reveal exposed areas, then maybe even get a bit of minwax stain and run some stain over it, then wipe it off on some parts... that will give you a lovely distressed 'shabby chic' look that is so popular. Otherwise, trying to get in and sand between all the floral carvings is going to be an absolute nightmare. Sometimes ,you have to work with what you got and change your vision a little bit.