|Hey there from the Critique Club
My thoughts on the image: Very unique. Like you posted, this is your first experiment with light painting. It is a very fun and interesting concept once you get an idea of which light and exposures turn out which images. You now know what you did for this one and which results followed.
My ideas for improvement: Paint more faster and speed up that shutter a bit. Moving the light slowly and randomly produces vast differences in the light and exposure. Start out with an idea of what you want to paint, the experiment until you get a consistent result. The random movement of the light produced some interesting shadows, but it also left you with some very distracting, blow highlights.
Where I would have/did score this entry: I did vote on this particular challenge, and I scored you at 4. With that in mind, I was in agreement with the voters for the most part. However, this is an interesting start to a potentially strong image. You have a strong idea and a great subject. Now go shoot it again. That D100 paired with the 50mm 1.8 can yield you some tremendous images. That is still one of my favorite old cameras to break out here and there.
Thank you for the opportunity to provide a critique on your entry,