How to market/improve AI filter app?

I have made an app which is a filter for camera created using stable diffusion. It transforms camera feed in real time. If users want to save the photo, they pay $2 to unlock the feature. It's a one time payment to save unlimited photos.

I am not sure how/where I should market the app. Also not sure what features I can add. I would be grateful for any suggestions on how to market/improve this app. Here is the link to the app https://www.linkedin.com/posts/saghan-mudbhari_its-exciting-to-see-how-capable-ai-has-become-activity-7086172067997384704-XCoT?utm_source=share&utm_medium=member_desktop
The app has 115 downloads and 10 purchases since it was launched 6 months ago.