I like your interpretation of the challenge and the composition of the image. Given the precision of the joinery, I think sharp focus would be more effective. With a stationary subject you can use a tripod or bench to hold the camera steady. This should help with sharp focus even if there is not much light.
nice shot,I like the subject and the composition. however it looks real grainy. Maybe some different lighting and camera settings would have produced a crisper pic
spoiled by lack of focus. I like the grainy feel but you've either lost the colour of the wood, or taken it out, and as a result the image seems a little flat..