The base version for this https://www.derpibooru.org/images/2313646
Bases:
https://www.deviantart.com/frozengembases/art/MLP-Base-Rumble-420255841
https://www.deviantart.com/miatdm/art/MLP-Colt-Base-Remake-732148454
https://www.deviantart.com/artgrrlee/art/Excited-Filly-Base-680263211
https://www.deviantart.com/green-b0lt/art/Base-12-553959627
https://www.deviantart.com/green-b0lt/art/Base-23-561472685
Background:
https://www.deviantart.com/lightf4lls/art/Ponyville-Background-347201012
(Bird vector and ball vector taken from free clip-art sites)