Here is the full list of all 6 The Manga Works trophies - there are 1 bronze, 3 silver and 2 gold.
Proof of serialized with Kairo Publisher.
Proof as working as manga artist for many years.
Proof of winning the manga award.
Proof that 1 million copies of book were sold.
Proof of hiring an assistant.
Proof of drawing a manga for the first time.