I took a look at your rejected photo. The screener left a message on why it was rejected for color, "Not double, but strong blue cast" When we reject for color, we do put the reason for the color rejection. Please take the time to read the Acceptance Guide. It is very useful if you have questions regarding the different rejection reasons. https://www.airliners.net/faq/photo_acceptance_guide/.
Just FYI, you can always find personal message from us via the Email we sent to you after our Rejection. You won't be able to find the message through Photo Corner though.