Welcome to the Guild Hikatsuya Rikimi

Your map looks quite nice, especially for a first try. The one thing that looks odd to me is the sea.The islands look as if they are floating in the air, sort of... If I were you I would also add some rivers in the upper part of the main island. Coming out of the mountain range you've got there, they would look natural in my opinion. It's your map and story of course. Just wanted to make some observations.