1. Increase the size of the Eyes and the Eyes by 25%, ideally this should be done as a blend shape so if need be we can change it.
2. Blend shapes, these can be simple:
1. Brow down
2. Squint, or blink
3. Adjust mouth shape for when the jaw closes, so we do not get geometry
4. Mouth corners, raise and lower.
3. Create and rig new wings for the bat character, so it can open and close it's wings for flight. Also rig the wings for movement. since the topology will be changing the UV maps for the texture will have to be adjusted. Adjust textures for the wings.