How can I improve my art?

[Pose]

So I'm a GFX designer who makes YouTube art. Problem is, I don't get that many customers and I can't figure out why. So I'm asking the community(you guys) how I can improve my art to be more appealing to customers. Here are some of my best examples:

The second one is watermarked because its for a client that will pay later. I will update this thread when the client has paid.
EDIT: I have a YouTube channel where I post speedarts of the banners I do, feel free to check it out: https://www.youtube.com/channel/UC6ezFfVNtXsMxeGTkJlAyVA?view_as=subscriber

 

[Pose]

Your GFX are pretty good, however you might want to improve on the text more, and try decreasing your prices? Also always advertise! GL With your business!

Thanks, ill keep that in mind! My pricing for banners right now are $3-4 per, is that too much?