I will create Thumbnails for your channel according to your request, style and needs. I will increase through Thumbnails the CTR of your video exponentially, so that you have more viwes and your channel grows.
From your request, using all the knowledge about the Youtube platform, and how the psychology behind the attention of users of the platform works, I will make thumbnails that will increase your views per video.
I am willing to go along with you (if you wanted) to analyze your Youtube channel, and understand why the current thumbnails have not so satisfactory CTR, and understand how we can increase the CTR by up to 20%.