Nature-Themed Coloring Book Illustration

I'm seeking an illustrator to create a series of simple, coloring book-style illustrations for an adult audience. The theme of the illustrations should be primarily nature and landscapes. There are 25 pages in the project.

Ideal skills and experience:
- Proficiency in creating simple, yet engaging, coloring book-style illustrations
- Strong artistic skills with a focus on nature and landscapes
- Experience in creating designs for an adult coloring book
- Attention to detail and ability to create relaxing and beautiful imagery
- Most importantly, the ability to translate from my sketches.

Please provide a portfolio showcasing relevant work.