You guys will get:

Polls - Vote on future polls

High Res. SFW "Story" Pin-Ups - You get the images on the original resolution

Gumroad Discount - You get discount codes on Gumroad purchases

NSFW "Story" Pin Ups - You get the alternate NSFW pin-ups versions

PSD - You get a PSD File with all layers

X-Rated Images - You will get an "erotic-pornografic" fanart based on the monthly story

(Sometimes) NSFW Short Story - You will get a written short picture story based on the X-Rated and Pin-Up image.