My, what an adorable sea-serpent!

There's one part of this map that looks really bad to my eyes. It's the way the continent fades off near the northwest corner. I guess the map is supposed to show only a part of a larger landmass, and you're trying to represent the line where it's cut off by making it blurry? To me this seems a rather ugly solution, and also destroys the appearance of a hand-painted map on a sheet of parchment.

Perhaps instead of this blurring, you could simply have the colored land end at the green border, but have visible coastlines extend further northwest. Or you could have it filled with a different color and leave out all the map features from that part; just a blank field of gray or something. You could also place a label in there, to explicitly inform the viewer that the landmass is supposed to continue but is not represented in detail past that border.

Another, perhaps more creative way would be to cut the parchment itself by the border.