After looking at the two photos, I think you have improved in a couple of ways. First, the background is much better; it distracts less from your wonderful pens. I agree with others that you need more light. Do you turn off all lights other that one light, if so turn the all on except any in FRONT of the pens. The left side needs more light and that will show off the work better. Some use THREE lights to do this: right, left and top. A light tent like I use in a way acts like this through bouncing around the light while diffusing it to reduce glare on our shiny metal areas.
You are improving.
If your camera allows: select a smaller f stop and a longer time. Since our pens never move and assuming you use a tripod or other method to keep the camera still - you have time, lots of time. Use it! In digital you can shoot until it looks better for free so try lots of different exposure settings until one shows more detail on more areas. This will also help with getting more of the pen areas in focus at the same time which has been correctly called depth of field. I think you have made a very deep composition that may not ever be in focus no matter what f stop you use. Try to use the same props and think "thin" and make all of the stuff in the shallowest plane possible. This shallowness and a smaller f stop should equal more in focus and a bigger smile when you look at your photos.
Keep up the good work!