Experimentation with Ghost-Watercolor texture

For a project I will soon be working on, I wanted to make a ghost with a unique watercolor-sketch texture.

It’s incredibly simple. I was so lazy I didn’t even try to find a seamless watercolor texture…

As a concept, what do you all think? There is much to be improved, but I am uncertain where to go from here. What ideas do you all have to improve this texture and make it more watercolor-genuine?
I suppose I want to experiment until I find something interesting