Ok this is my first critique so I'm trying my best so don't blame me.
I think you did really well with this picture which was so good I thought it was photography. This picture is really good and I loved how you made it look so life-like.
The tiny person holding the umbrella in the corner just ties it all in. It mixes with the picture to create an feeling of separation. I'm not sure if that was your intention but overall you did an excellent job with this picture.
I hope I did ok with this critique. Excellent work again and keep up the good work