Hello people!

Im preparing to post my first 3 illustrations to istock, and i am preparing for a long time as i am kind of afraid. I read all their rules etc, i just want to ask you for that three illustrations. Do they must be different themes or it can be for example Christmas theme but 3 totally different motives, subjects? I have some with Santa at his home, other will be snow landscape with Santa and raideers and final will be kids riding on snow. Can i do that? Or i must send for example Christmas theme, Shopping and Food? Thank you in advance! Ooh i also wanted to ask you, if i can submit one work here to you to give me opinions can i send this to istock evaluation? Thank you people! Angela