Photo credit: Sarah Esteje

BIC pens are great for taking notes, writing research papers, and apparently, creating mind-blowing animal portraits, or at least that is true with artist Sarah Esteje. She uses a combination of blue and black BIC pens to create these stunning drawings. Continue reading to see them all.

10. Pig

4. Wolf

8. Rooster

7. Octopus

6. Dog

5. Alligator

4. Zebra

3. Owl

2. Hippopotamus

1. Buck