There are literally 12 of these for botcoin already and all of them are failures because they're completely unoriginal.
There is another one which I am aware of where they sell every pixel for the equivalent of 100$ in BTC manually which is just silly. this is an automatic process and you can outbid other players for pixels, the starting price is extremely low.
If I'm missing something throw me a link to a website which is similar to mine.