And just - is not anyone interested in buying some embedded artists development boards?
(To moderators - this is not a sale offer)
Do not send personal messages to this troll and scammer to buy something from him, you will waste your BTC.
There is an interesting recent re-tweet by the author of the puzzle:
https://twitter.com/Zd3N/status/946039176486584321She seems to be involved in creating this other puzzle, as she was given credit in the image ("Thanks to @coin_artist for loading this one."):

The solution is interesting and may relate to this puzzle. Each image is converted to six bits of information, and this series of six bits are used as index into Base58 charset, "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz". To simplify it, each 6 bits are index how much is each letter away from the beginning of charset - the letter/number "1". This series of 6 bits converts to WIF encoded private key in this manner. If something like this applies to this puzzle also, we are looking for series of 6 bits which begin with 5 since all WIF encoded private keys begin with this number.
Edit: Video with original puzzle animation that was later converted to individual images. Animation = private key:
https://i.imgur.com/70ivlo0.gifv