Nice one Monster, it does still work. I did a couple more experiments. The first is I flipped the one on the left horizontally, now they appear as a mirror image, both identical.
Next I flipped the one on the right as well, and suddenly the illusion is reversed and now the one on the left appears to be leaning more. Again, I didn't just flip the entire .jpg, I flipped each side individually.
This is an amazing illusion. I hate my brain for trying to confuse me.