This is one of those ones where I just started sketching whatever and the result was good enough I wanted to shade it. So have Fluttershy being happy and energetic about something. This was done mostly without reference and some things are a tiny bit off.
Done in 3.5 hours with the 2H-HB-2B trio.

Maybe you need more feathers? 😮
Did you adjust the levels on this one? The tonal values are good.