Close up photography, or macro photography is certainly worth a try. You don't need extremely fancy equipment to get nice results. I found good light one of the key factors. Because you are focusing in on a particular subjects you need enough light to get the required sharpness. The photo below was taken with a flash set up against a corner of two white walls. In addition I used an on camera flash. In this way the subjects got light from almost 4 angles. The two walls bounce light from left and right. The flash, not only illuminates the walls but also give some direct light from under beneath your subject. Your on camera flash is your fourth light source.