In one comic strip show you just how adorable Fluttershy can be, AND you shut all the "AJ is a background pony" people up. AJ is awesome, and Flutters is adorable, and I love that you put both of those together.
The message you conveyed in this comic is one that more people need to take to heart. Lots of people don't really show their true selves to the world for one reason or another. In many cases their choice is probably subconscious, but learning not to be ashamed of it can make them happier in the long run.