i’ve been getting asks about how i do lineless art so. i will try to explain 

• i used the pen tool on default settings for everything here
• using opacity lock or a clipping layer, color the lines the same color as the base color 
• bring out edges or elements using contrasting colors / values
• paint over whatever you think needs changing

this way is kind of lazy, but it’s fast and you don’t lose much of the original drawing in the process. i hope this helps! :o