[LoSboccacc]

Also the lighthouse's sky: "That's sky, it's surely blue!"

Generally it's interesting to see nn thinking out missing details. I'd like to see images with an element deleted and a nn filling in black spots to see what level of shape recognition could do.

[Coincoin]

I'm pretty sure if you asked a group of humans to colorize the lighthouse you would probably get the same result.

There is no way, from the greyscale, to know that the sky should be orange.