Smiling woman in her closet
The best way to get followers is to fill your closet with beautiful items that showcase your style - and then show those items off on Poshmark. Aim for a cohesive aesthetic in your photographs; use similar backgrounds and framing. You may also want to pick up a few popular new designer items to draw people to your closet. Even if you can't sell them at a profit, you'll gain more followers, and your other items will be more likely to sell.