In the example image, use something more attractive: https://cl.ly/e0f820
Something like this: https://cl.ly/afc51a (original image is too blurry & the vector one is so clear! it looks attractive.
& try to add 2,3 example images.
your gig title is: I Will Convert Your Logo Jpg To Vector
so that means, you do accept only jpg format to convert is as a vector!! so remove *jpg from your gig title.
you can also add your fast delivery time in your title! for example, https://cl.ly/f2c72d
& for gig description, check other people's gig description. then You will get an idea to make it better.