many refusals lately on DT, are you experiencing the same?

Nope, not one since last March. (when I stopped uploading to them because of refusals)  

"Reason: This is a very well covered subject in our data base or the subject of your image is too specific."

Image was of John Glenn. If you want to take the time you'll find the search results in NO IMAGES matching.

What the heck is "too specific"?

"We are looking for images that exceed the technical quality and creativity of the images already online."

Similar images using the same methods, which produce isolated on black compositions, highly defined, sharp, colorful, are accepted at numerous sites including IS, SS and Alamy. They are my best selling images. (being removed from FT for the same lame rejections and "these don't sell well")

That was the end.