illustrations for book cover, graffiti

I am looking for a high-quality illustration for the cover of my upcoming book that has a cartoon/comic style, targeted at adult readership. I have specific colors and themes in mind for the graffiti element and would like someone with an eye for detail and an understanding of what will appeal to my target audience. The ideal freelancer will have a portfolio that reflects their skill in creating visually appealing graffiti art, combined with cartoon/comic illustrations. If you think you have the skills and experience to produce a stunning book cover with a graffiti element, I'd love to hear from you.