I think i did quite thorough search but didn't find this pic here, even though i was sure it should have been here so.. if i just missed it, sry.

If anyone knows the artist it would be nice. Btw i couldnt decide if she was falling or flying.

I would say falling, due to the dress lurching upwards instead of being rather.. well, normal. I'm not an expert at this, though. Don't take my word for it.