However, sharpness (focus) and 'DoF' (Depth of [focus] Field) could be better. Due to you hand-holding the camera (camera shake...), as well as the object (double shake)!
You will get razor sharp focus if you use a tripod and your camera's selftimer. And DoF can be improved with a smaller aperture.
Also, with your current, practically head-on lighting the objects look relatively 'flat' and devoid of texture. If you light the objects from the side (with a piece of white paper on the other side of the object, as a reflector, to 'open up' the shadows) you will get much more texture, and be able to see many more details. Done well, your objects will appear to be almost tactile. Only 3D imaging will be better still.
