It's very... Inconsistent.
For a 2d game, your actual map (not the minimap) is comprised of I assume 16x16 tiles. That being true, than your minimap should be scaled appropriately to that... IE if you scale it down, you could consider each pixel as being 1 16x16 tile. Etc...
Your map however is very..... random with placement. Player position would never line up correctly on those in a 2d game