MicrostockGroup

So, I am reading through istock illustration guidelines and I totally understand similars and what is or isn't acceptable.... my confusion is about similars where the main character or image is on a white background.  Do they consider the character on a non-white (or illustrated background) and the character isolated on a white background similar?  I've seen a bit of both and I wasn't sure what I should submit... both types or just the fully illustrated version, you know, since the buyer can isolate and change it on their own.

I am just trying to build up a collection and don't want to waste time creating a bunch and then get them rejected for similars.

Thanks!

iStock is pretty lenient with alternate versions for illustrations. Other agencies like Dreamstime or Fotolia will most likely reject similar images in the same upload batch.