Bubbles From Canada, joined Apr 2005, 1193 posts, RR: 52 Reply 3, posted (5 years 4 months 4 weeks 1 day 2 hours ago) and read 1414 times:
The main problem of this image is the plane looks slightly blurry. You tried to give more sharpening to compensate the blur, thus some jaggies appear in places, such as, titles, but not too serious. These tiny issues could sum up to a "quality" rejection.
By the way, this photo was rejected not only for quality, but also for other reasons.