Some cactus themed creatures and character.
It was a lot of fun to draw and fill in a page in my sketchbook, water based pens can blend really well but I don’t use them too often unfortunately.
Lobivia robusta var. sanguinea
Rebutia xanthocarpa v. violaciflora (слева) и Rebutia krainziana (справа)
Lobivia haematantha ‘hualfinensis’