Yes, you can earn money of this. It is very detailed and imaginative, you nail the proportions and shading. Just as a nitpick however, you could benefit from some more variety in your pieces. style catches the eye but development keeps it and all that. I am really impressed with how you made the textures though.
https://www.google.com.au/search?q=disney+%22destroy%22+drawings&safe=active&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjh7L2dsuTSAhVrwVQKHevIC9MQ_AUICCgB
But would you pay for it? :D
It's under "selfies"
But yeah I like doing colourful pieces too