It looks very good gammetelier, have some reputation!
Highlights for me are:
- The realistic looking mountains and terrain
- The colors
- The font
- Your rivers seem to very large/wide. On this scale not all rivers should be shown or be this large/wide.
- The rivers don't act naturally. Rivers normally don't split as water takes the way of least resistance. The same goes for outlets of lakes: multiple outlets are rare.
As this is your map and your world, feel free to do what you want with your rivers. I am just saying that in the real world these rivers would be unnatural.
So, are you going to add places of interest, like cities?