I love this for reasons that are not obvious at all I'm sure.
Did you look at the reference image? It's supposed to appear as if it's falling towards the thorns.
In real life, shrikes impale whatever they catch on thorny plants to eat them later and it's ironic in this image because the shirke itself is going to become impaled itself.
I can't tell if the bird is going down or up. It looks like the body is going down and the head is twisted backwards. o_O
This is really really great! The only thing I point out is the slight difficulty in comprehending if the bird is seen from the back or the front. But looking at your reference, you did a great job!!
i look this. it's so deep...