Realistic Art for Adult Novel

I'm seeking a talented artist to create cover art, character illustrations, and possibly additional artwork for my adult novel. The art will be slightly pop art/graphic novel inspired but needs to maintain a realistic style.

Key Requirements:
- Realistic art style with a pop art/graphic novel influence
- Illustrate multiple key characters from the novel
- Experience in creating engaging and captivating book covers

Ideal Skills and Experience:
- Strong portfolio in realistic and graphic novel-style illustrations
- Ability to convey complex characters and emotions
- Prior experience with adult novel illustrations

Please provide samples of similar work and estimated timelines.