Nice to see "Red Deck Wins" is going to be able to be a thing in Standard again. Burn has been lacking, but it looks like Eldritch Moon will move it back to playable and powerful!
My only suggestions are small ones because this looks pretty dialed in.
Goblin Dark-Dwellers is great, but at 5 mana and only 19 land, it could be a while before they come out. Maybe reduce the number of copies to 2 and add a couple more of those
Thermo-Alchemist. These seem really solid for this kind of deck. They're a decent blocker and get in for a minimum of 1 damage a turn (three a turn when you trigger a madness effect).
Avacyn's Judgment could be a 2 of alongside
Reality Hemorrhage (run 2 of each). Judgment is only sorcery speed, but ca clear more threats, and give a target beyond
Fiery Temper for discard outlets. Just something to think about.
I hope you found this helpful. Good Luck and Happy Hunting