This is a really interesting image, that shows emotion and motion in a interesting way. This piece of art carries the personality of each of the cutie mark crusaders.
One of the most interesting elements in this art work is Sweetiebelle's eyes. They almost pop out of her face and show complete joy and happiness. I also like the way AppleBloom's bow is coloured. It is coloured using subtle purples and yellows. I really like how the yellow colouring is used to highlight the purple bow.
In conclusion, this is a great piece of artwork which shows motion, colour and happiness in a awesome way.
This is really good. Positives: The choice of colors in the shading would be the best part. I think you did a good job style wise, they look similar yet different than the ponies in the actual show. I also like the lightsource used. What needs improving: The composition isn't the best, it feels pretty cramped in this space, so if the canvas was wider or square shaped it would be better. Also if the colors blended more it would softer and smoother. And maybe some work on AB's body structure, since it seems a bit off. Hope this helps