This reminds me of something that would go on a T-shirt or a mural in the city. I absolutely love the color combination and the sort of ethereal look that it gives him. Putting a piece of the manga behind him in that particular shape is also a very nice artistic choice. The shape gives it a very dynamic look. I barely know anything about Jojo, so I can't say how well this reflects the nature of the character, but it is definitely a very aesthetically pleasing piece. Good job!