So I have an image that I want to just improve on, problem is I suck at Photoshop and would like just a bit of help

JonOU812 Sig Pic.jpg

Focusing on the image inside the white, I basically want it kinda similar to how this looks

boulder_badge_by_zexion21-d3afhzy.png

Kinda in the same style more or less, and if you want to add anything that would look good or better then that's all up to you.