I'll share my experience with you, I checked your gig right now. I can see it's not an attractive gig image because first impressions are very important. Take care of these points.
1. First of all check your competitors' gigs and check their gig images.
2. Use keywords in your description and it should clearly explain what you offer for the client.
3. Use highlight and bold in the description for main keywords and explanations.
4. Get the right gig image size
https://help.fiverr.com/hc/en-us/articles/15863342952977-Gig-Images-General-Gig-image-guidelines#:~:text=If you need guidance%2C when,Dots Per Inch (DPI).