Why are my posts removed due to "low quality"?

I have uploaded 7 drawings to this platform and they always delete my publication. in the reason it says "bad quality" but I don't understand why it happens or how to solve it.

To put it bluntly, your art is not good enough to be uploaded here. I encourage you to keep improving, but you have a ways to go before it reaches an acceptable level of quality for Danbooru. You'd find better luck using other websites such as Twitter of Deviantart.

AngryZapdos said:

To put it bluntly, your art is not good enough to be uploaded here. I encourage you to keep improving, but you have a ways to go before it reaches an acceptable level of quality for Danbooru. You'd find better luck using other websites such as Twitter of Deviantart.

my style is cartoon so as time goes by it won't change much... but thanks!

Danbooru is curated, this isn't the right kind of website for self-publication. Self-publication isn't against the rules, but it's discouraged. The bar for quality on Danbooru is very high.

Further feedback requests can go in topic #7934.