Your camera and photo skills are just fine and up to the task, mate. If anything, cut down on the resolution so the images don't take ages to load. Too often a higher resolution image will add no useful extra detail.
Close ups is what is needed because we all know that anyone can paint a gun... fewer can do it so it looks good close up.
BTW surprisingly impressive characteristics for the air-curing Ceracote types compared to the oven curing ones. Is it smelly to work with?
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