Yeah she's a bit out of proportion here but whatever. You can find this artwork on the card itself when it's uploaded to deviantART. Card info:
My Little Pony Star Catcher
LIGHT/25th Birthday Pony/4/ATK 1600/DEF 1200
This card gains 500 ATK for every 25th Anniversary Pegasus Pony-Type monster you control. If your opponent doesn't control any monsters with less ATK than this card, this card can attack your opponent directly. If it does so, its ATK is halved during the Damage Step only. If this card attacks, discard 1 card at the end of the Battle Phase.
Ultra Rare