I tink this is a very nice piece, the style is unlike anything I have ever seen and the highlights you have added to the eyes make them very appealing. The auras in the background are an added bonus to a great piece also.
One thing I have picked up on, is that if you look closely as the outlines on Rarity's rear hoof, and the tips of the majority of the characters, the outline 'could' be a little smoother; perhaps end the outline on their tails with a thin flick. This is only a small thing I could say, everything else seems absolutely wonderful. But this small little effect could make a difference to someone who may be very picky.
Other than that, great work and I hope to join you again in your next livestreaming session.
Well to start of this is an amazing piece of art,I love how Fluttershy's hooves are squished into her face,it shows so much about her,Also I love how the background is the same coulor as the pony great idea!.All i would say is to smoothen the Unicorns horn thats all though but everything else is great.I also love the colours in there eyes and that you made them all shiny what makes them adorably cute so i would give this 10 out of 10 for a amazing and cute piece of art,you should do alot more these are so cute!