The idea is great and the drawing is too. You can see the transition from happiness to fear on his face.
But there are two points that look wrong: the position of the crown in the reflection and his left hand.
From the position of the eye the crown would be nearly seen edge on, from the left back side. In the reflection this would be a band diagonal on the upper right side, with the top of the spikes behind a bit of hair.
And it looks like he is missing his index finger of his left hand. The details show you have drawn the finger tip, but the rest of the finger is missing. It's a difficult hand position to draw, but either the hand should be seen more edge on or the knuckle of the index finger should be visible too.
I hope this critique helps you to make your future work even better than this.
Gido's avatar
It's fine, I don't really mind critiques, specially if they're mistakes I could have easily fixed.  Llama Emoji-06 (Depress) [V1] 

I've already made a mental note regarding not letting minor details go in the future.  Cutie Nod  Thank you!