If you crop the photos to remove all of that wasted, empty space, then effectively you will achieve a zoom. But still better to put your camera in macro mode and take closer-in photos. If you are using the flash, it is probably better to turn it off and use the ambient lighting. The flash tends to wash out details due to excessive reflected light. You can also combine each of the multiple posts that contain just one photo each into a single narrative post. Makes it a lot easier for folks to reference your instructions by linking to just one post instead of a slew of them.
Nano, what drive current are you using for that GD driver?