Map is 1000 miles long and wide. In general, do these placements make sense?

I'm also wondering:

• where volcanoes would be?

• why the coast is full of life and the west dead and barren?

• where the equator would be?

and if I can make the northern coast more rocky and full of islands -- plateaus and whatnot.

This is a zone of safety for people, a haven protecting them from West & South. Perhaps 1-2 million people living here split between a few ruling faculties.

(Tan/brown): Desert, dry land, hot.

(Light-green): Arable.

(Green): Dense forests.

(Dark-green/dark-brown): Magic, cursed land, unnatural jungle, might be spreading.