Thanks for the accept, but before that I just wanna know does the maximum post in avatar and signature campaign are separated? if yes, it means I will make a post 20 post for avatar and 25 post at signature, isn't right? thanks. 
You have to make minimum 20 posts in Avatar campaigns and all what is left is 5 more posts for the signature campaign.
You get paid in both campaigns and I hope you understand now
