How can I make this look like those humen anime fan arts?

Its somewhat ready but im getting this message right now....

Chatting with a vilager

After 7 long years, the wait is finally over. Chapters 1-4 of DELTARUNE are out now!

Celebrate the parallel story to Undertale by completing these quests.

Deep dark lore is near (yes i bought it.... it was taking to long what ya gonna do about it)

Persona redesign

I may retire soon + anime version of me

The brothers

Survivor Designs of my FNF Corruption au thingamajig

Changing core sans...completly...with some help