Krag the Rhino from Null-ghost.

https://www.furaffinity.net/gallery/null-ghost/

For more Accuracy, please use these keywords on generating:

KR4G, rhino boy, gold earring, maroon eyes, ombre yellow blue hair, red eye shadow, black eyebrows, red X on face, cheek marks, rhino horn, left deltoid tattoo, gray body, crew cut hair,

"Ombre yellow blue hair" is needed if you want to keep the tri-color hair effect. Sometimes it does not work accurately. experiment on the values to get more consistent results.