Your hands are very pretty, btw. What I like on thicker fingers is a chunkier/clean setting like the Tiffany Etoile (both er & wb) - as just an example.
I dont know if this will help or not, I have very short fingers and very stubby, I wear a size 8.5, the e-ring is very thin under 2mm, the wedding band is 4mm, I decided I do not like them together as they take up way too much room on my finger and tend to be a bit uncomfortable for me, had the wedding band been a tad bigger I might have been more comfortable.