SERIES 7: Steel Ball Run
It's the seventh instalment of the JoJo saga and takes place in the wild west in 1890 (about the same time period as the first arc of JoJo).

From Project Bite Me! Scanlations:

The creator of Baoh and Jojo's Bizarre Adventure presents a manga about magic and mysteries! You'll meet him at 13:13 pm, on Friday the 13th. He'll do an uncanny intro where he plays a trick on you! And wherever he goes, trouble seems to always follow. Who is this person who creates such incidents? None other than Cool Shock BT!

SERIES 5: Vento Aureo
Set in 2001 Italy, the story follows Giorno Giovanna, son of DIO, and his dream to rise within the Neapolitan mafia and defeat the boss of Passione, the most powerful and influential gang, in order to become a "Gang-Star" and make the world a better place. With the aid of a capo and his men, as well as his own resolve, Giorno sets out to fulfill his goal of absolving the mafia of its corruption.

SERIES 8: Jojolion
This is the 8th installment of the Jojo no Kimyou na Bouken saga and an alternative take on Diamond wa Kudakenai (Part 4).

Won the 17th Japan Media Arts Festival Grand Prize for Manga.