guess the style challenge!!

new style challenge wip?....
(template by @lumiere)

Can anyone guess who's styles these are based on?

hint: first one is in my own style

Reward:
a free lil bust sketch for the first person to guess all five other styles correctly before i post the answers along with the finished version on Monday @ ~3pm UTC!!

Rules:
- must guess before deadline
- please write your guesses along with the given numbers
- comment or quote your answer, NO dms please