Very poor. Compare your work with the default maps. I don't mean to be harsh but I seriously cannot find
anything good or unique about this map.
• It repetitively uses only one scenery over and over again
• There is insanely minimalistic shading, only on the outer edges
• The layout is not circular; there are a lot of dead-ends which forces all players to cluster in one area of the map (here, the bottom-left)
• The polygons' textures are not stretched at all (makes them boring to look at)
• The polygons are jagged and too simple (if I can tell how many polygons you used to make a particular section, it might need more
)
Study other maps. Layout is really important as well.