These are my suggestions/comments:
Gig: I will write a guest post for your sports blog or website
The fact that most of the description is in bold might not help/might make it a bit harder to read.
The URL for the gig is “give-you-50-sports-trivia-questions” but that seems a bit unrelated to what the gig is about so it might not help with SEO.
Gig: I will sell you my rap instrumental beats
The gig description says “I have over 300 rap instrumental beats available for exclusive rights.”. The gig URL says “give-you-exclusive-rights-to…”, but all 3 of the gig packages say “non exclusively” so that seems to contradict the gig description and URL and there’s no FAQ saying how they get the exclusive rights (unless it’s an extra I’m not seeing).
Gig: I will write an article on wrestling for your website
In the gig description:
Maybe change “i’m”
In the profile:
The avg. response time is quite high at 13 hours. That might affect rank.