It looks to me that your right limb (lower) is just a tad bit stiff in the middle of the limb. A little more bend there will bring that tip back up a bit and should get you real close to symmetry...... I dont think it needs very much at all....maybe a couple scrapes, excercise, check and maybe a little more, it is very close.
Just my opinion so wait for some other guys to chime in, couldn't hurt.
rich