Welcome on Fiverr, I think that is the right decision. You will see, Fiverr is one of the best for freelancers.
I m here the second time, and I again work hard and try to grow my profile.
first of all, you describe yourself very nice, that is ok. Second, maybe it will be good to give some information to the client on the thumbnail image. For example, on banner design, you only have that words. Give them the price, hours for delivery, some professional semple or past work.
I see that you don’t have any GIG lower than 20$. Why you need to start to go with big price. I start every GIG with 5$ and later when I collect stars and reviews, I make bigger packages. I remember, before 2 years, I worked here and installed WordPress site with 5 pages for 10$. That is to low, but I needed to catch clients.
I believe that you are a good designer, but you need to confirm it on works here.
One more thing, try to put video description for GIG thumbnail. People don’t have to much time these days, they really like to watch 1-minute video and check all your skills. If you don’t have experiences with video, try to find freelancer here, give them your 10 works and they will make a nice presentation, usually with voiceover. You can paay it 5$-10$, but you will have more success in job research.
And the biggest thing - send all 10 requests per day, but try to find job requests which are ideal for your skills.
Wish you many luck here and just keep on working!