Hmmm… that code is very ugly… this is why I HATE the Neopixels Library. Too many delay()'s for Blynk too.
I recommend using the FastLED library.
Take a look my own thread using the same LEDs. I have a very advanced Blynk app controlling zones around my house which you could use instead.
Take a look at the Github repo and readme (still a work in progress)