That AppleDash/ Rainbowjack looks pretty awesome. Not too much rainbow, the skin is green (maybe orange and blue makes some weird green? o.O) the hat with the goggles, the bandana, and the cutie mark. The cutie mark is creative and makes sense why its a Zap apple.
1st pony is like study with fun! I'm calm and won't mind for some assemble around some goOd evenT! the fused pony of the 3rd line is a big mixture of wild and tuff pony, headcanon: be carefull with her, don't get on her nerves even if on purpose. Wow, pony you may need to chill and move forward meditatively. Yeah! THat'S the SpiRit GirliY!!! > *fire spirit*