I decided to choose a shop that can make a beautiful poster for my story and I hope this shop won't disappoint me! 

Yep, that's right, Di'amon Castle is a multi shop that will provides wonderful posters for my story! Here's the link: http://www.asianfanfics.com/story/view/1011527/di-amon-castle-multi-shop-opening-19-march-graphics-review-trailer-shop-posters-graphicshop-advertisement