I admit, Gilda looks much younger in this picture, you gave a really nice image of innocence for Gilda, the purple shadow effect mixes awesomely with her feathers and fur which does not clash against the background. I say the purple, black frame, and white is an outstanding choice of color for Gilda it really brings her out.
I really hope that she gets the chance to get back in, make up for the stuff she did in that episode. You know, showing the good side as well. Your shadings are = top. It's a pleasure to see every time. Keep up the great work.
Alternatively, double down on the bitchery. Have it turn out that she's an enormously successful athlete in wherever the hell griffons are from, and while her team (basically the Wonderbolts, but griffons) is in Cloudsdale for whatever reason, she goes down to Ponyville to antagonize Dash.
"I'm living your dream, Rainbow Spaz. The problem is, we're busy this week and can't make it. So, I was hoping you and the Wonderbolts could take over for us." "Oh, uh, I… I, uh…" "I knew it! You're not on the Wonderbolts! Well, I'll just let you get back to manual labor now."