Hi!
Are you making sure that you are tagging your photos properly?
If you are posting travel pictures and want to participate on @Juliank 's contest, you have to make sure that you used the tag #travelphotography as the very first one. That will help him find your post . There's a big chance, that if you are not using the correct tag or not using it as the first tag, he has not been able to see you picture in the first place.
I really hope this was helpful.
i myself am looking forward to enter the contest. So good luck!