Background Pony #AF0B
You missed some previously suggested characters.
In the right box with Fluttershy saying “Thank you all for your help!” you missed two characters that I named earlier in this thread. Those being the bluish-purple mare with two-tone mane in a bun in the bottom left corner (I had named her “Deep Curl”) and the blonde maned light green body stallion wearing a pale and tall hat who appeared to be glaring in the bottom right corner (I had named him “Lonely Trail”)