After the ramble that I did regarding "illegal tracing" we go to something much more deep that goes the opposite: doing things legally on your comics.
Don't worry I am chill now pSH
We all know readers take a few minutes to read a single page/episode vs the author/artist themself spending days and hours to create just one single page or episode.
It's really a pain. yep.Creating a comic series has a lot of legal excuses to do than doing artworks alone.
Here are dank tricks that I learned from a friend/internet that are legal to do when creating comics faster or easier.
Backgrounds and perspectives
We all know it takes a lot of time to draw or paint a background from scratch. But to make things easier:
-Use 3D Modelling Programs such as Google Sketchup, Sims and loads more to render existing buildings, landscapes and models.
I literally found a lot of Webtoons (even the featured ones) using rendered backgrounds and then tweaking them a bit with filter and stuff and they used it in their comics.
Therefore I think this is a legal thing to do. Just make sure the things you used are not copyrighted and if says "free" to download then it's free to use.
These programs help a lot in perspectives too especially obtaining angles that you prefer. Another advantage is that there are lots of 3D models and objects to reference from.
Anatomy and poses.
Takes quite a lot of time too when you do these from scratch on your comics, though the best legal way is to use 3D model program thingys (cant' remember the names sorry LOL you could search for the free apps/programs in Google) which features 3D modelled humans that can do various poses or you can customized them if you want. Which you can use as a reference in drawing your poses and positions of your characters.
It really helps getting through a lot of references in order to make your comic more awesome showing more dynamic and life.
Photoshop
This is kind of optional but you can use this in order to add effects, use free photoshop brushes to make your comic livelier. Depends on your choice though.
And yep, there are a lot of free photoshop brushes like for leaves, light, smoke, clouds and trees that you can use if you're not that confident at drawing them or if you want to do things faster.
Free Textures or patterns
Again, saw a lot of Webtoons doing these, instead of drawing the texture or patterns from scratch, download free textures/patterns and incorporate them in your comic then add your preferred shading. Same cases like clothes, wood, etc. Just make sure they syncrhonize (using some filters) with your art style.
I think those are generally all of what I learned and heard of, if you do have more legal tricks on creating your comics up your sleeves, share them in the comments here. it would benefit comic creators on saving time
However if you are learning to do purely art as a major thing please don't use most of these "tricks" to cheat. If you are obliged or told to learn anatomy or drawing landscapes from scratch. Do it so.
I do not force anyone to do any of these tricks, do what you prefer to do whatever what makes you comfortable as long as it's legal and it doesn't use someone else's art/ copyrighted things and claiming as your own.