Most of these are also in need or some sort of fill light. If you dont have an external flash, a reflector would work, given you had someone to hold it. A flash would probably be your best bet with a young one like this because they don't usually like to sit around too long so it might be tough to control the light with a reflector. Another thing is that during the times when the sun is high you get funny light on the face, some bright spots, and some dark shadowed spots. Try and find some shade to avoid the crazy light, and use some fill flash to brighten it up a bit!