Requesting a tiefling knight-in-training and a gnome scout. Both are women.
The tiefling's skin is dark red, except for her legs, which are goat-like and mostly covered in off-white / creamy fur. Feet are cloven hooves, hands are clawed. She has curved horns like a ram's, pointed ears, and long white hair loosely collected into a bun. Pupils are also goat-like, and her features are broad and youthful. Armour can be simple, like a beaten up breastplate over a jerkin with some gloves. They're not totally needed, but you can add in an unworn helmet, a locket around her throat, a sword at her hip, or fuller armour - all of which looks like hand-me-downs or like she tried to re-fit looted armour herself.
The gnome is about half the height of the tiefling, and on the stockier side in terms of build, thanks to her partly dwarfish heritage. Short, reddish hair swept back from her face, showing a big grin and rosy cheeks. She wears a thick, heavy cloak, mottled in dark greens and greys, with the hood usually pulled back. A quiver of bolts strapped to her thigh, and a folding crossbow tucked into a holster on the opposite hip. No real armour, just sturdy leather boots and comfortable travel clothes.
The short backstory is that the gnome scout bears news of an impending evil on the edges of the civilised territories, and is being tracked by the forerunners of said evil. The tiefling, in an effort to prove herself worthy of being knighted, goes with her to guard and protect her in their travels. They soon became close friends after several near-lethal encounters in which the tiefling saves the gnome's life, generally risking her own life in the process, with the gnome teaching her how to hunt and track, and trying to be a good role model to the younger tiefling.
For pose, the gnome could be hanging off the tieflings shoulders, pointing off into the distance, or - it being loosely established that the gnome has a thing for tieflings - gently nuzzling at her neck / ear.