I guess the thing is to keep in mind when you are photograhing artwork is that people don't compliment you on your photos because of the artwork as opposed to your photos.
I hope that makes sense!
Example: there is a girl in my local that goes around photographing really awesome graffiti. She then sells them as her own photography. You can buy small photographs or you can buy huge mounted close to life size prints and she makes a killing considering the little amount of work involved. People aren't the buying the photos for her art. They're buying the photos for the art she's photographed. There could be some angry artists out there when the realise that she is doing this.
Sorry, just going on a tangent here.
Do you have any photographs of things that aren't already art?
It is more fun to talk with someone who doesn't use long, difficult words but rather short, easy words like "What about lunch?"– Winnie the Pooh
People take pictures of sculptures and architecture all the time... I think it's fine, as long as you dont ever try to claim to be the artist. This picture is pretty odd... I get a little disoriented looking at this picture, if that was the intent, great job.
The line weight is still too thin and fragile looking. They appear grayed out like something is missing. It's fine to use some gray but it is a bit too weak. How are you going to print gray? A spot color?...