You're probably not interested in hearing this but it's a big point for me for when I see people doing drawings of archers. I'm a big history buff and weapons fanatic, and studying archery is something I've done a lot of. There are two different holding styles primarily for bows. Your little troll guy is super well drawn but by the way he is holding the arrow in the string the arrow should be on the outside of the bow. The short bow and many other bows like it suffer from what is called the archers paradox. It's the different in where the arrow is actually pointing and where the bow is pointing with the string (directly through the bow as the string would pull) Causing where the arrow actually hits to be about halfway as the arrow literally flexes around the bow. That point is inconsequential to how you hold it but when someone pulls back the bow and the arrow is on the inside like that the twisting of the bow string from the pull and especially the release pulls the arrow off of the bow. When it's on the outside releasing and drawing both twist the string with the arrow towards the bow and helps it stay put. Japanese and Mongolian bows to name a few have a thumb ring that they use which allows the arrow to be on the inside because you are pinching the string and releasing it while the string twists the other way (towards the bow if the string is on the inside). This style is simply different than western bow techniques and the Japanese daikyu even is bent sideways a little so that there isn't any archers paradox. But I digress. You may not care about this little detail and most people won't even notice or care, but if the string is being held like that with the fingers that way then the arrow should be on the outside, held in place by something on the bow or the archers hand.Great drawing btw, I LOVE centaurs!