The photos are definitely a good starting point. I'm far from an expert, but here's a few things I would do to try and improve them:
1. The photos look a little grainy... this could be from a number of things:
- the software used to resize/compress the images
- the camera settings to high compression
- the ISO setting of the camera
2. Try to improve the balance of light in the photos. Many of them are a bit dark in the front. The best-lit pic is the HRB Majestic. The lighting looks great on that one!
3. Post-processing. Bumping up the contrast a bit can do wonders to brighten the background and make the pens pop. Watch the bright highlights in the metal components and don't add too much or they'll be washed out.
4. Pen presentation. This is more of a personal/artistic thing. But you might try experimenting with different angles. I prefer the pen to be angled a bit more away from the camera.