EXP and framing great. I am a lover of blurs but when you cannot find the bird's head that's a tough road to hoe...
later and love, artie
ps: All that matters is that you like it.
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Like the other guys said, you probably need a little more form in the subject to make these blurs work. Must be something about Robins - I had a really similar shot - like yours, probably just not enough form.