This is a very cool image with a lot of potential. I'm curious to how you did this and your picture link below isn't working :(
But I do like this idea and concept very much. Just a few minor things, if corrected could have put this much closer to the top. I like the bright lighting as it shows there are no strings attached to the card and it really adds to the mystery of the technique. The problem is, as stated before the background. Maybe if you had an all white backdrop so you could see the entire shadow, that would be wicked to me and bring out the white in the backdrop so it really pops out at you. The black and gray doesn't work because it's competing for my attention and the line that cuts across is very distracting to me. One other thing, maybe a different crop, all the space on the left is wasted to me personally, there is nothing there for my attention and it doesn't really add to the shot, but if you moved the space to the right and extended the shadow of the card and pencil to the right so you have the physical card and pencil on the left leading me in and the shadow of the card and pencil leading me out............... Just a thought. I would love to see how this was done AND if you ever try it again, I would love to see the results.
Now as for lighting its to strong...you have too much shadowing going on. Also not sure what is up with your background but it doesn't work too bad you don't have the same black in the back as you have under the pencil.
As for being delicate I can see it here. It fits the challenge.
Hope to see a lot more of this type of creativity from you in the future.
GREAT IDEA! Looks like you had some problems with resizing. I see many pixles. I would have cropped out the bottom of the image, the negative space under the pencil isn't needed.