He looks wild and fierce in spite of his rather sad expression. Even though it's fairly monochromatic you've managed to bring out his face and hair with just touches of other colors. Very well done and interesting to look at.
I love how paintery the whole piece feels but especially the background. Those flowers look so nice and I like how they turn into abstract shapes. But then I come back to the boy and I love how deliberate he looks especially in the neck area and his hair. The colors used on him really looked controlled carefully.