This is an amazing job indeed, very good job.

The only thing that I could not find was the scale of the map extent. I only looked at it for a minute, and as a complete n00b here, I doubt you wanted some random d00d to QC your map. Also I am judging it on Earth terms (size, planetary tilt, etc.), so it may not be even justified at all. The only other thing that I noticed was the equator 0 had some curvature to it, and the grid north at the equator seemed to be angled, though without a scale its hard to determine the math of the grid. There is also no datum in the legend, though this is not always necessary. The legend also lacks a map projection, though it appears to use a standard UTM projection. Other than that the only thing I would change is some of the locations of the annotation of the populated places and their masks.

It looks beautiful and is a great job.