I know that you posted this a while back, but I haven't been on for a while, while dealing with life, so I'm trying to get a bit caught up.
First, that is a wonderful performance, full of vitality. I have started the practice of just listening without following the score. I've realized that the first thing that I want to hear is a convincing performance, whatever liberties one may take with the composer's indications. All in all this is very convincing. I then will look at the score if there are any parts that I hear that seem to be less convincing, either to figure out where it is or if my impressions match the score to any degree.
Your thirds are great (regardless of any pedaling issues). I wish that these older hands could do such as cleanly. But, as is the job of all commentators on PS, I have to pick a few nits. These are minor.
From my first impression, Var. I seems a little rushed, particularly on that run starting after the last beat of measure 2. I loose the feeling of a march. In Var. II in the alternating octaves in the last 2 measures, your hands to seem a little out of sync. Finally, Var. III, the descending run in the triplet thirds (essentially the same idea as in Var. I) looses the sense of the meter of a march (even though this of course is dolce. Since the phrase marking starts off of the beat, here IMHO the first 2 notes need to lead us into the downbeat.
Beyond that, I truly believe that this is a wonderful performance.