photoshop, got it from school & studio...they will check on you to pay for it if you are making a good amount of money using their product. There are a lot of free or one-time payment software more centered towards digital painting like Krita and Clip Studio though. Photoshop would be stronger for photo-bashing in comics I guess. I also like their blending options for clipping mask and overall very high-end software. The comic I told you about will be in watercolor and inks...I think the medium can offer really nice graphics for the comic if I use it right.
don't mind fast reply tapas forum notifications showed up while I painting wasn't stalking post haha