While I'd hardly call myself a "master" and I have no experience creating this style of map, there are a couple of comments I would make.

First, I would recommend turning down the opacity on those grid lines. They don't need to be solid white to be visible and the less they obscure the map detail, the better it will be.

Second, I am not convinced that this whole continent is speckled with little lakes, as shown. Certainly, there could be areas with a ton of lakes, but it is very unlikely that these conditions would exist essentially everywhere, even on the islands to the lower left of the map.