Answer:
It looks like it could have been done with different types of mediums. You can tell that the artist tried to make it have more dimension by adding in shadows and highlights. I think the color gives it a good balance though. It looks like it is a piece that as the observer you need to come up with yourself.
Have a great rest of your day! ♥♥
you should scholar vincent van gogh
Yes it does urban art is really important for the every day population.