It appears that you decided to go with a back and white aesthetic for one of your new movies.
This actually hurts your movie a little bit because color not only enhances your work but the audience expects it.
A black and white movie is gonna be held to a higher standard than a cartoon created in color.
It is entirely possible to create a polished cartoon without color but it is important to compensate for a lack of color.
Teach yourself how to use any of the possible techniques for working with extremely limited colors.
Look to Comics, Manga, Old movies, Old tv shows for sources of inspiration.
Lots of media exist in black and white form.
The black and white look can actually work for some of your new movies but you need to teach yourself ways to compensate for a lack of color.
I look forward to your cartoons and keep on trying new things.
Keep up the good work.
-Mightydein