My clothes aren't successful?

Hey, I have many clothes in my Roblox group Pixel Zone. Especially The Puffer Jacket that I made. But I barely get any members on my group or sales on my clothes. The only way I have gotten sales is by using experiences such as Developer Hub were you can share your groups, clothes and games. I also have advertised many, many times before but it was just no success. Can I have suggestions as to what to do. Something that doesn’t typically involve using Roblox’s stupid advertising system because that clearly doesn’t work.

These are the clothes for reference. (Psst I also have more, check out my group for more clothes)
Much appreciated.

Try advertising on social media platforms, promising good clothing