during undels lightning ancient drawing stream she said that some of the other site artists do the sketch/concepts, and then she does the lienart and shading to keep those aspects consistent across breeds. IIRC xhaztol did the concept for bogsneaks, suburbansamurai did aethers and abbies, and idr the exact artist but undel said someone else did gaolers (sin maybe?). i dont have the timestamp for this but i think it was in the first stream