Like, height, weight, dominance, colouring, clothing (or lack of it), etc.
OK, please, send me a PM with any specific requirements you have for their design.
Also, do you want it to be sprite-like or more freestyle? Spritesque style will be more complicated to develop, but much easier to use, while freestyle will be easy to develop, but much harder to use.
OK, I'll start designing the concept arts then.
TPT, and i can wait that long
Would you like me to do sketches in TPT, or on paper? If you choose TPT, you would have to wait until the weekend; if you choose paper, you would have to give your email as it's the only means of communication I have.