Hi there,
I was happy to see a project like yours and I would like to express my most serious interest to work on your adult colouring book. First of all, I'd be happy to contribute to the noble cause as I'm familiar with the needs of the vulnerable group and I think this is a wonderful way to offer therapeutic help. Apart from that, I very much enjoy creating adult colouring designs and I find the very creation therapeutic. I have some experience with several similar projects (sexual education, forthcoming mothers and nature). Few samples are available at https://www.freelancer.com/u/ddimitrovska.html, but I would happily send more if you are interested.
As I'm a traditionally educated artist and an old-school illustrator, my offer is not for computer generated images, but for original, handcrafted designs. I would deliver high resolution scans or I can send the originals, upon request.
Please contact me if you are interested. I'd be happy to discuss details over chat.
Kind regards,
Dusica