vandergus,
I will take a go at this; and thank you for priming the critique with questions and exif. My own impression of the photograph is that it is technically good and well executed. Your subject is relatively sharp against the panned motion. The angle is quite good to my taste; and I enjoy the variation of textures produced by the panned background and relatively focused subject.
Now, having said all that, it is, again to me, not believable that you would be sleeping through the speed of your hammick. In other words, the motion that you produced with your panning technique appears faster than would be taking place while you were sleeping. Now if you were frolicking with a women and it was going that fast, I would believe it.
I think you did a good job subject to my comments. You know, it's all practice any way you slice it.
And I do think you were creative in this shot.
Keep shooting.