[Any success from posting your Fiverr gig on LinkedIn?]

I don’t use any social media to promote my Gigs.

I get all my business from Buyers doing searches here on Fiverr.

How could you make byer request to get the job? Can you show any sample?

[How can I improve my gig and increase my order?]

YES if you make changes in your gig that means you are updating your gig.