I really like this Eric and your changes make it read so much better. In the early paintings, I had to look for the rabbits that people were talking about but now with the lighting and the tracks, the one rabbit stands out as the focal point and your design leads my eye to look for the other rabbits which makes it so fun. It's really nice.
And on the subject of frustration, probably the most freeing thing I heard from the SVS teachers is their comments that they go through really ugly stages in their process when they start to say to themselves, "I can't draw." If even they go through that, it makes me think that it just comes with the territory and I've gotten better at telling my brain to shut up and let me persist. I also play classical mandolin and read of a famous violin teacher who said, "There's no such thing as a difficult piece. There are only time consuming pieces." I'm only an amateur but learning to ignore my frustration and accept that some paintings will just take me longer (sometimes A LOT longer) to figure out has really helped me improve.