Bold Cover Design for Thriller Book

I need a bold and dramatic book cover design for my KDP ebook, paperback, and hardcover editions. The book is a thriller/mystery genre, and the cover should convey a fast-paced and intense feeling to the audience. Ideal candidates should have experience in creating impactful and genre-specific book covers that stand out visually and attract readers. Familiarity with KDP formatting requirements for different formats is essential. Please include samples of previous related work with your bid.