Perhaps an Illustrator!

I have been working on my kids' series and have still had no help from the one I queried so long ago, not even a "sorry, I can't help you", so on I go. I will make it up and hope it is believable!
Anyway, I have someone that is a tremendous artist and have asked if they would paint pictures of my characters. We shall see! I am so excited I can't hardly wait to see what they will say! I only hope I can afford it! hehe
But it would be nice to have beautiful color paintings of the people and the castles of my books to use for covers and trailers and such, wouldn't it?