the bulk of it is SFM. I used paintDOTnet to add a little bloom and the sparkles.
The background was made mostly of the Blackhole models found on the workshop, while other parts of it are volumetric lights.
Also, thanks! Funny thing is is that there was actually quite a bit of regard as to what colors I was using. I had to make sure everything stayed a good contrast of color, so as to not look like a complete hot mess.

What did you use to make this? Genuinely curious.
Also, fantastic work! You've really captured the essence of "throw in as many bright colors as you can without regard"!

Thanks a Ton. I was going crazy looking for that one.

You should be able to find it by searching "Cone scout" in SFM

Sorry to bug you, but what is the name of the Hat on his back? It's a straw hat clearly. But what is the name of the model (also is it in SFM by default or was it ported from somewhere else?)

but the question is, the jojo or the jobro.