Its very pretty, but I''m not sure it would look quite right.......but I really like the one geckodani posted. I think a shared prong eternity would look amazing too!
Would you consider placing a thin spacer band -- could be plain or channel or whatever -- between the U-prong type band you posted and your e-ring? I think that could help lessen the potential damage -- of the 1/2 eternity rubbing up against your e-ring prongs. That way you would have more choices w/ your wedding band...