It's nice work, starting by drawing by hand as you did. Is there a scale in miles / km? I like the colors for the political boundaries, countries, so the yellow is fine. However the ocean is too blue for my taste, maybe too much saturation or too bright, perhaps consider making the seas more navy or muted color, and perhaps fade to a deep ocean color offshore. The mountains look pretty cool to me.

The network of rivers is impressive and largely believable, to me, but I am unsure about the hydrology in Kheiol ending in that largest lake, and the inland sea with islands in the unlabled Northwest region. Maybe those 2 great lakes or seas should have a river outlet that eventually flows to the global ocean.

Thank you for sharing your work in progress