Sci-Fi/Fantasy Book Cover Design

I'm in need of a professional book cover PDF, tailored for a Sci-Fi/Fantasy novel. This cover should prominently feature character illustrations in a realistic style. The ideal freelancer should have a strong background in graphic design and illustration, with experience in creating book covers for the specified genre.

Key Requirements:
- Emphasis on character design
- Realistic illustration style
- Experienced in design for Sci-fi/Fantasy genre

Please provide a portfolio of relevant past work.