Hint: Always be honest even if it might be a little harsh ;)
Hey there, Sherkin, we wanted to thank you for your continued engagement and helping us find issues in the game. As a reward, we'd like to offer you either a sketch or bonus scene featuring whichever MoS character is your favorite. I was unable to message you directly or find your twitter so I had to reply here, haha. Please let us know what you'd like!