Here is the bosses I have beaten thus far (in order) from my terraria challenges world

Took about 3 or 4 attempts

Only took 3 attempts

:D

Forgot to post but I beat dukefishron Yesterday

I was so fucking joyous cause the bastard keep killing me

Ray

Draedon what the fuck

KISS MY ASS MECHDUSA

WHO THE HELL DO YOU THINK YOU ARE?! I AM!!

Nope

I still beat it so idfc