QC (quality control) means reviewing photos of your rep sneakers from your agent before approving shipment. You compare them against retail reference images to spot any issues before it's too late.
GL = green light (approve and ship). RL = red light (reject and request replacement or refund). When you're happy with your QC photos, you GL the order.
The swoosh angle and placement is the most critical. An off-angle swoosh is immediately visible in person and can't be fixed after shipping. Always check this first.
Request: both shoes side by side, lateral side profile, medial side profile, toe box front-on, heel, sole, tongue label, and insole. Natural light photos are better than flash for color accuracy.