I saw the image.
I also have seen several pieces of Melanie Boone's collages that have sold at auction.
I need the sight the dimensions of the collage you are asking about.
Size is a factor in determining value.
Unfortunately, I was unable to find an accurate answer to your question that you will accept.I am going to release your question (opt-out) so that if another professional will give you an answer that pleases you, he/she can help you.I will not be able to respond to your questions once I opt-out.I hope you find the answer to your question that pleases you.Kind regards,Doris