I thought I was very careful and checked everything with this illustration, but I still found 2 mistakes after I submitted it. Unfortunately I know it is going to be rejected, but that is only in 2 weeks, and then it will take another 2 weeks for them to review it again.. ughhhhh..
Here is a sample. They ask not to use transparencies in vector submissions. I didn't .
UPD: huraaaaay!!! I have just received a message from istockphoto support that they will remove that file for me and I will be able to resubmit it. "crossing my fingers"