Andy Warhol pop art.

We have been learning about different types of artists and what type of art they do. We had to find a black and white object and put it into six square table. Then after we had to print it out and colour it in with vibrant colours. I found this a easy and fun activity to do and it didn't take too long. What I found hard was finding something to work with. What do you think about my work? Could you please comment something thoughtful, helpful and positive.