I compared my background with outlines and without one, but when i choose to use outline, it makes kinda bit messy to look (just because of my messy drawing.), plus the thick of the brush i used to everytime i draw, but not backgrounds with the exception of my project.
Here are my example, sorry for the mess coloring, this is how i really color, it gets through outside the outline.
And after, i get to use without outlines, which is very clean, and no mess, i was kinda proud that i really make it through with no mistakes and it has a difference between my old background wih outlines, but the angles or the shape doesn't really matched up sometimes with real objects.
Like this for example.
And yes, i choose without outline, just like i said, its clean. So what do you guys think? Is it better to use outline bg or without one? You could share all of your opinions.
Thank you, and sorry for the bad english,



