I personally believe that this is an effective design
Explanation:
The color combination helps to make the event seem exciting, and also a bit mysterious. The font also intrigues the viewer to read the information about the show. The art is also very creative in itself, the only thing I could say needs work is the emphasis on the reason it was made. What is the show about for example? But if there was no prompt for what the show was about I think its great. :)
