Fellow world-builders, I need some guidance. I've been drawing a map of the continent Anai'vora, the landmass where my current D&D Campaign takes place. I'm very new to world building, and this is my first stab at anything cartography related. I've spent over a 100+ hours researching and drawing (and redrawing) what I have so far (see image below), and I'm still nowhere close to being finished, and I'm starting to get discouraged. This is very much a fantasy map, but I want it to at least be semi-realistic. Australia was very much an inspiration for how it has turned out so far.
I've been trying to figure out where rivers and lakes would make sense to go, and I've tried placing a few, but I don't feel super confident in my chosen placements. I'm also trying to go for certain biomes if possible in a couple places. I want more of a Wild West feel on the left side of the Central mountain range, and more of a traditional fantasy forest feel on the right side (if at all possible). I've made some quick labels for where these might go, and have included them in the image below.
The ??? represent areas I have no idea what would make sense, and areas I have no issue with them being whatever makes the most sense. I would really appreciate any suggestions and feedback you guys might have. I want to do this map to the best of my ability.
Special Notes: In case it's relevant, the Shattered Isles were a peninsula that was ripped apart by a cataclysmic-level event (Gravity was redirected to pull the land apart), hence their unusual formation. Novarra (the world this continent is on) has no moon, but rather a ring similar to Saturn, as well as two suns (yellow and blue). Novarra orbits the orbit of the two suns around each other. The crater (directly underneath the word Rocky) is a result of a floating city crashing to the ground from Orbit, and that area is probably pockmarked from falling debris.
However, I still don't have good sense of where to put rivers or additional lakes, especially with the changed landscape.
Also, since the crater of the fallen city is on the edge of the Desert, I've labeled the area around the crater as the "Glass Fields" as I imagine there would be huge chunks of sand turned to glass from the immense heat of impact (more importantly it's cool).