Tip, stay away from (architectural) or any other category that is astronomically beyond full.
The market has a simple equation, “demand versus supply”, no matter where you go.
When supply is vastly larger then demand, prices go to the bottom.
When demand is there but supply is short, prices go up.
So, look for demand and short supply.
If not and you persist in positioning yourself in astronomically large supply, be ready to add 1000+ models in one archive and sell it for 5 dollars few times a year.
On other hand providing one great model on your account that is in demand but short in supply, be ready to sell is for 100+ dollars on regular basis.
No reputation, time on platform or lots of models needed.