This is so late but my best tip is MONEY. Gain support and fans and more money will come in. The more money, the faster the webtoon process. How can you use money for faster Webtoon?
-You can hire artist to do lineart, flat color, edit, etc.
-You can buy better art program (for me clipstudio) and you can buy better brushes and assets to utilize
-You can buy programs to made/hire someone to make a 3D model of your character anatomy. Then you can transport it to clip studio and you donât have to draw the sketches anymore. You just have to insert the 3D model and then change it to whatever pose you want then draw lineart,hair,clothes, etc. (https://youtu.be/OVUkizjDctw)
-You can buy 3D models of backgrounds, items, etc and convert the image into lineart then just color it.
Of course, if you donât have money, use inspirations and ideas. If you have a clear idea of the story and the scene, the art usually doesnât take very long.
You can also make your art style simpler to make it faster to draw.
Art tips Iâve seen and do not recommend:
-copy and pasting backgrounds. Each scene usually comes with different perspectives and view of character so using the same background makes it obvious you didnât try hard and isnât as entertaining for you audience
-Finishing a script first. There are many different type of artist so your ideas may not come to you unless you are progressing and having a seen WEBTOON for the current plot. (It works like that for me too because I spent 2 years building hundreds of pages of script to only scrap it and find the story is better as I go along) Note- I do recommend having a clear idea of beginning and end along with struggles character faces but script is dependent on person.