Where should I ask for your reference for your monthly reward? (Patreon)

Hi Supreme Floof members!! I have been messaging you all individually for your references around the middle of the month so i can draw your "thank you sketch headshots"

I just wanted to know if you think a different way for relaying that info to me would be better

thank you for any input! ;w; <3 I just wanna make this as easy as possible for you guys!