Yea that's the downside to making sprite tags.
Sprite renders can't be re-sized because they will lose quality. (if you re-size it smaller it loses quality too.)
I'm loving the collaboration you've done with Dan, you're definitely a great graphic designing team and work well together.
My personal favourites would have to be the collaboration with Dan and the C4D Sci-fi signature, they're both awesome. All your pieces are well designed.
Also, I have a quick question, how long did it take for you to create that smudge styled signature? It's awesome. Good job, InFRaH!