Your right, no two bp's looks alike. Too many "normal" variations in colors, patterns, size, and stripes. There is a fine line between morph and normal variant. A ball python with a complete stripe down the spine, I'd consider a morph, if proven genetic then great. Same with complete black backs. Reduced patterns are tricky, it'd need to be very highly reduced for me to consider it.

Normal variants include high gold, granite, partial stripes, and too many others. Blushing is fraid though.