Lizard monster from H anime "Venus 5 セーラー戦士ヴィーナス・ファイブ (OVA) ".

mai_lizard_monster,extra_eyes,red_skin,blue_tongue,lizard_tail

Maybe a frog? In any case, it's a common mob.

Some friends left comments saying they want this little monster to appear alone as the main character.

PS: Some sample illustrations cannot be posted in the community; you can visit my Pixiv community posts to view them.

https://www.pixiv.net/artworks/145694649