I finished it guys!

I'm really happy with the result altho I'm doubting to change the background in a lighter blue. Can you guys give me advice?
It was really hard to do this because there are so many colors in this painting! And usually I keep it at only three colours and make many shades of that. In this paining i had to make te shadow red and the light blue so that was super hard. I loved how it turned out.
Here are some more pictures:

Can you see the details in there? Wow that was hard.
So, should I change the background or leave it like this? I'd love to hear from you.
Xx