The Tastediffer Tinkerers

i just started to draw and paint with poster paints. I drew this in my art class as my first drawing

materials

i used doms 12 shades of poster paint

and for brushes i used camel sinthetic gold brushes

difficulties

i had many dificulties in painting like :

1. getting patches during painting. i get it when i do not add more paint.

here is my drawing

you must be wondering what are does. they are mistakes made while i was painting by mistake i droped the brush when i was painting for the left one. But on the right it is the same but i tried to rubb it of which made it worse and the papper started to peel