His sprites from Super Mario Maker 2.
And,I edited his some sprites myself.
The zip includes:
GFX32 (SMAS Poses).bin - A version of SMM2 SMW Luigi with his SMAS poses for jumping, sliding, throwing fireball, victory, etc.
Moderator's note: included a modified version of GFX00 to fix Luigi's arm palette when he does special actions. Included a modified version of GFX10 and a palette file to fix Yoshi's colors on the Overworld. To use it, import with the Green Star + Red Arrow button on every submap. Included a modified version of GFX28 that swaps Mario's name with Luigi's in the status bar.