I have a picture of a girl which was taken slightly below her I think. I didn't notice it in the beginning but, looking at her now, I realize that her hands (which are holding something at waist level) look huge! I have been playing with transform buttons but it still looks odd. Do I need to just keep playing with it using perspective and warp type things?
Because the shot is "natural", the hands look naturally big. So, maybe you're focused on them too much. Show the image to a few people who've never seen the shot and ask them if they think anything looks unusual in the photo.
If you still feel they are too large, I would isolate the hand(s) by cutting them out (pen tool) and pasting them into new layers separately. Then scale each hand appropriately (I would probably make slight adjustments). Extreme adjustments might look strange.