Random Protogen head by Fetaref on DeviantArt

Commission} - Jakkua protogen reference sheet by LeoKatana on DeviantArt

Head Commission: Digi the Protogen by RageandRoarCustoms on DeviantArt

Protogen OC headshot by TheM0derator on DeviantArt

Design i did for a protogen head and i'm quite proud of! :) : r/furry

Arabic Protogen head by DEffet on DeviantArt

Seosaur 🦊 on X: Protogen commissions! Fullbody, headshot and reference sheet. 🗒️My commissions are OPEN: #protogen #digitalart #commissionsopen #anthro #furry #characterart / X

Digi the Protogen Head WIP: Head Nearly Done by RageandRoarCustoms on DeviantArt

Godren the Protogen, Reference Sheet (old). by CancriPlasm_ArtZ -- Fur Affinity [dot] net

Protogen Head Com by Derpy-Dino-Jay on DeviantArt

Lo Res Protogen Head by Rockethero15 on DeviantArt