Here is the breeding challenge for November, 2017 and the rules for qualification:

Challenge: Breed a Fawn blend Mossm where color 1 is darkblue and color 2 is darkgrey. The prize for completing this challenge is a mossm with a darkblue-longfur-darkgrey-longfur Stargazer blend (see image at the bottom of this post).

Secondary Challenge: Breed the challenge Mossm above with Okapi eyes. The prize for completing the secondary challenge is a new pink reptile eye and a pet powerup.

1. Colors must be in the correct order, if you do not know how to tell please read this document: http://mossms.com/content/traits/
   
2. You must post the URL of your Mossm in the forum thread for this month’s challenge.
   
3. You can only win once.
   
4. If you win the Secondary Challenge you do not get an extra prize Mossm.
   
5. You must breed the Mossm yourself.
   
6. The Mossm must be created during the challenge period.
   
7. You must still own the Mossm at the end of the challenge. If you don’t want to feed it, put it in a cryo-pod until the challenge is over! If you don’t own it I won’t be able to tell if you completed the challenge and you won’t get your reward.
   
8. The challenge begins at the time of this posting and ends on the last day of November.
   
9. Prizes will be delivered the day after the challenge is over.
   

http://mossms.com/p/Lynx.nowicka/mossm/Nov.Challenge.Vick/

http://mossms.com/p/Enoutzon.blinker/mossm/Yellow.Okapi.nuuu/

http://mossms.com/p/Snowyummy/mossm/Zacharie/

My cool little fawn http://mossms.com/p/Surfaqua.oh/mossm/Bleu.gris.64/

http://mossms.com/p/Tywysoges/mossm/Yaroslava/

http://mossms.com/p/Avroran/mossm/Larina/

Does happy dance :)
http://mossms.com/p/Royinator/mossm/Nov.Challenge.2017/

Remember, blue is your friend :)

http://mossms.com/p/Shari.azarov/mossm/Daniela/