For sure, white backgrounds (255, 255, 255) sell better. Obviously, for designers it is simple and fast to cut object from white background and put it on any background they want. Therefore, in fact, white background means ANY BACKGROUND.
Astormfr gave you good advices. If I can add to them, I would say to upload regularly. I've always heard it is better to upload a few images every week rather than a big bunch every 2-3 months. Also, it seems that becoming exclusive might help you. Good luck!!!
Interact, make friends, share tips and techniques, have fun. Dreamstime wants your ideas and thoughts whether you are a photographer, designer or regular user. Create a blog to tell your story, promote favorite images and photographers, post tutorials or simply exchange opinions with your with fellow dreamstimers.
Don't forget words and pictures go great together so make sure you choose some Dreamstime favorite pics to brighten your article. For inspiration, check out the hottest or the most useful blogs on the left.
Create a blog to tell your story, promote favorite stock images and photographers