Hello all,
the previous puzzle was solved by collaboration, on this one people are reluctant to share information. I've only looked at the puzzle for a couple of days, but in the spirit of the previous puzzle, I will share what I have found.
Bringing the brightness of the image to a minimum and adding lots of contrast will make some parts of the image glow:
https://imgur.com/a/MuBr8The rabbit has shown you this by posting an image with an overblown brightness. I do not know yet what it means, but it's interesting nonetheless.
Part of the original clues was a quote from "Alice in Wonderland" and a big theme in that book is following the white rabbit. Whoever denies that there is a rabbit in that picture is delusional or trying to misdirect other people. Interestingly the rabbit occupies or touches 32 squares. Giving those squares coordinates would result in a string with the length of 64 or a private key written in hex. But what is the order in which to read them and what are the coordinates?
Using 0-9 and A-F seems to work and would generate a valid hex string, but what about the order?
The spirals in the corner have a direction for the upper part and a reverse direction for the lower part. The rabbit seems to be torn in half by the vine, almost symmetrically. 17 squares on the lower half, 15 on the upper half. I tried reading the bits using these patterns, but they failed.
The fact that the bitcoin address is a vanity one tells us the bits are random, so I guess reading them in a certain order is not possible. So that route is dead.
There are also letters scattered about on the painting. Arrows also. Found at least 3 of them. The last image in the imgur collection will have them.
Good luck to you all and a big thank you to the creator, it's been an interesting couple of days.