Jojo has many Doujinshi novels but they are often of poor quality because they are usually based on the characters and plots of the original work rather than the style and setting of the original work. In addition, because Jojo was a work with a strong personal style and unique atmosphere, the creation of Doujin novels often required a lot of modifications and adjustments to the original to ensure that it was consistent with the original.
Although doujinshi novels were created with great enthusiasm, due to the difference in quality between the original and the original, it was often difficult for them to gain the recognition and support of the original author, and they were often disliked and criticized by readers. Therefore, although there were many Doujin novels by Jojo, their publication and reading were often not as popular as the original.
The JoJo manga is mainly in black and white. Colored versions exist but are not the norm. Sometimes, colored illustrations are done for promotional purposes or by fans.
I think it's great. The characters are memorable, the plot is full of twists and turns, and the battles are epic. It's a manga that stands out from the crowd.
It depends on personal preferences. Some consider Jojo to be peak fiction for its unique style and engaging storylines. Others may have different opinions.