Nice pen. For the middle photo...either increase the DOF you're shooting at or turn the pen more sideways. The focus at the top of the pen is a bit soft/fuzzy. The pen looks a bit too wide where it meets the top of the center band under the clip...it's likely just fine in person and the close-up makes it easier to spot.
The dark background with a dark pen body doesn't work well for me but that's a very subjective area (and if you like it, that's much more important).
Initially I shot the photos using a white background and am struggling with the metering on my NikonD70. I simply could not get a decent exposure. I was struggling with everything looking washed out. I believe now that I was confused on the mode I was shooting in and will go back at some point in the future and work on white background as that was my initial preference.
I see what you mean in respect to DOF. Something to pay attention to in the future.
You caught the one defect I knew about. The bushing mics out fine (I had this same problem on another set) and I believe the center band is slightly undersized on the upper edge. I'll check it in the morning. I am a perfectionist so this one will be disassembled and fixed.
Thanks for your comments.
I have a D70 in a closet around here somewhere...and a D70S...and a D90. I'm now shooting a D7100. Each was an upgrade with the 70S->90 and 90->7100 being much bigger improvements.
The D70 is still a fine choice for what you're shooting and if you have a tripod (or a stack of books), you can shoot a fairly small aperture. F/11 with a 35mm or wider lens would have more than enough DOF to get everything (maybe too much) in focus. For stuff like this, I shoot aperture-priority and let the camera figure out shutter speed. If it's too dark or too light, tweak it with exposure compensation.
I found my D90 really needed some color correction as well. I didn't have the card to do that back when I actively shot with the D70S but it likely would've benefited as well. The D90 had trouble with certain shades of orange and yellow until I added a custom color correction. Keep an eye on your pen photos and if you see any non-trivial color variations, that's likely the fix you'll need.