Found an image similar to one posted, but I was a bit further away with a better bird angle, de-saturated the end of the perch, and left the eyes as taken-deselecting for adjustments to curves and saturation to maintain reality. I hope this one is improved but honest comments appreciated. Canon 40D-500mm f4 and 1.4x, ISO 400.
I definitely like the perch and how you got it coming out of the corner. Owl looks mesmerizing with that stare. He looks nicely positioned, good exposure and I like the blue BG. You could try some crop off the top.