I gets pretty red. Try it on a scrap first. Natural will let the real cherry color come out. Cherry is photo sensitive , it will darken with age . Sometimes I will put a sanded cherry piece out in the bright mid-day sun for a few hours to get some color started before oiling or finishing.. Try it with a scrap and cover part with some blue tape. That will show you how much it really darkened. I have heard of people using tanning beds too.
Poplar has a greenish color that may affect the ebony. Sand to maybe 100 grit on a sample and try one or two coats. It needs to be wiped back before it completely dries. Don't leave stain sitting on the surface or the finish may fail.