How to attract viewers to maximize the sale ?

Your models are so high quality, maybe increasing their publishing score could help attract more views. An ideal publishing score is around 8.

Quality first...then quantity

by answering to comments

I reviewed your page and saw that you have very few models. I recommend that you create very niche models because the competition on this site is very high. Make unique models that are not everywhere.

You are truly talented, and your models are beautiful! However, it seems like you have a limited number of models right now. To get your first sale, it's important to focus on increasing the number of models you have available. The more diverse and attractive works you add, the more likely you are to catch attention and appear in search results.

Keep improving your work, and by adding more models to your portfolio, you'll notice an increase in your chances of making a sale over time.