Photo shop has been my go to, But Illustrator is a better vector program, And was needed for my plotter...So I had to get both, Ps, as your aware is more of a photo/scan editing program, If you have the missing art Its not a problem to infuse it...Now Ai is more for creating the lost piece, and very difficult to learn, Although its set up like Ps. Its not, Throw out what you know and approach it with an open mind...I still prefer Ps. But that's just my preference.