The JJBA manga is indeed finished. It had a great journey and wrapped up with a satisfying conclusion for fans. However, there's always the possibility of spin-offs or related works in the future.
Perhaps there are stories about his collaborations. He worked with various great musicians over the years. These collaborations not only shaped his music but also led to some unique experiences and stories. For example, his work with David Bowie brought out new elements in his music and might have some really cool behind - the - scenes tales.
Since I've not read the 'iggy angel novel', it's hard to say precisely. However, it could potentially be a fantasy novel where Iggy is an angel or has a special connection to angels. Maybe it involves a journey of Iggy in a celestial or earthly realm, dealing with things like good and evil, love, or self - discovery with the angelic element playing a significant role.
The order of JJBA manga is determined by the release dates and the development of the plot. You can start from the earliest published volume and continue in sequence to get the full story experience.
The coloring in the gappy JJBA manga can vary depending on the edition or fan-made colorings. Some are quite vibrant and true to the original style, while others might have a more unique take.