This is the Super Mario All-Stars: Super Mario Bros. 3 - Underground background but in Layer 3
Ripped Super Mario All-Stars: Super Mario Bros. 3 Underground Background was by Merio https://www.smwcentral.net/?p=section&a=details&id=302
This was in the C3 Summer 2018
Fix: Change the Palette Row so it dosen't overwrite the status bar colors.
This submission would heavily benefit from using more than one layer 3 palette, so the graphics could actually look more like the original background. Also, the included palette doesn't match the original and honestly, doesn't look nearly as good either.
You must also mention in the description that a third-party patch like Sprite Status Bar or Minimalistic Status Bar must be used, since this is a Layer 3 background that's supposed to cover all the screen.