Sharpedo, Chamo-Chamo Pretty's Treeko and SMG4Verse's Mario are respectively from Nintendo's Pokemon, Princess Octavia's from YouTube's Helluva Boss and this screenshot's taken from Valve's Garry's Mod.
Inspiration: BoBoBo-Bo Bo-BoBo's Torpedo Girl's catchphrase: I'M A TORPEDO!

This Sharpedo's being training itself with Aqua Jet above the ground and unexpectedly hit Mario's groin and send him flying. Via successfully dodged it while Treeko's holding on to it's top fin as much as he can.