Wasn't sure how to let you know, but I just posted one of the headers I have made thus far for you to look at. I haven't tried one with a room view like you suggested. let me know what you think. I will make a couple dividers as well. Here is the post. https://steemit.com/art/@donnadavisart/a-steemit-commission-for-steemitbooks-a-proposed-header