My opinion... depends on what you aim for? If you aim for map-of-the-year, then I would say there are many things you need to improve.
Just to mention some:
• The background "paper" texture is of very low resolution. You can easily google better quality textures.
• The coastline is obviously sliced out with a round brush and doesn't look realistic.
• Mountains are better, but it seems to have two different pencil shadings. But that is a minor flaw compared to the rest.
• Rivers... I try to ignore them... try!
• Icons look good. but too transparent imo.
How much time did you spend on the map?
And last, what I wrote above is my personal opinion and doesn't need to be true in any way! If you think the map is awesome, then it's awesome!