im so sorry to hear that you had negative experiences and criticism on other platforms, people have no right to give their critiques, even constructive, if the artist themself didnt ask for it. its horrible that people choose to create such a negative environment around art, which should be welcoming and appreciative as everyone has their own creative and unique drawing styles. i think what's so fun about it is seeing how everyone's individual creative mind works, and how its expressed through their art. i love seeing different styles of art as its exclusive to each and every person.
i think that your art is super cute, at first glance it made me feel very happy inside, joyful really. my favourite is the thwomp and whomp one, it brought a smile to my face and the little text and scenario played out made me giggle! keep doing what you love and dont let anyone put you down luv!
as for pricing, i also agree with
@Croconaw's suggestion of opening a PWYW shop if you're unsure about what prices you want to set, a lot of artists on here use this method so it's definitely an option!