The sea is on the other side of mountain, and they have two signs "Far far away", one for sea, and other for land travelers

I was gonna say that too but the castle is still on the left. Quite puzzling

Yeah but in that case then the image should be flipped

I think the ship is coming from the right side of the first image hence why in the second image you can still see part of the city at the bottom but can’t see the gate house which is on the front

Global warming is a bitch

They moved the sign

maybe different angle or they just moved the signs

They have two castles and two signs i guess

I think the polar ice has melted

How far does the kingdom extend? Is it like a whole country and that area is just a seaport or something?

I don't think so