วิธีแก้ไขข้อหา Poor Lighting 

Reject season : Poor Lighting--Image has exposure issues and/or incorrect white balance

You can correct them by adjustment "Level..." in Photoshop 
Process in Photoshop
1) Go to "Manu"
2) Select "Image"
3) Select " Adjustment"
4) Select " Level..." 
5) Drag Arrow at "Input Levels" to cover and touch your histogram See Picture below...

Easy and careful your histogram too.
Thank you