Have you ever played with wordle? Its a program that creates “word clouds” where you can set a variety of parameters (font, colors, etc). I pasted one of my posts: Plague in the time of war. You just modify it or recreate the cloud until it comes out like you want.
I’ve made wordles before, but I’m intrigued that you made yours in the shape of a cloud. It would be great if you like to say how you did that.
You just have to work with it for a while. It depends on the text and the font. I remade the cloud probably a dozen times until it looked the way I wanted. I think having a lot of words with low usage (small) to fill in the cloud helps this one.