That looks brilliant. Good work so far. I'll put in a small comment based entirely on regional bias. The mountains in Scotland are wrong. You have a small ridge down the East coast, which doesn't exist as far as I know, and no mountains in the highlands. I know the Scottish mountains aren't of the scale of the alps or the Atlas mountains but they do hit 1000m, and are larger than anything else on the British Isles. Otherwise, very pretty.