Here's a pic about an aftermath of battle against Tatanga in Tatanga Story Arc in Super Mario Bros GT The Grand Adventure.
Luigi ask Daisy for their marriage and Daisy's happiness blooms out of her heart and accept Luigi's request, which means she will say "Yes".
Also, Tiff, Kirby, Mario and Maple watch Luigi's ultimate dream - To marry the princess of Sarasa Land.
Mario, Princess Daisy, Luigi, Kirby and Tiff aka Fumu (c) Nintendo, HAL Laboratory and Warpstar INC
Maple (c) Brawlfan1
Super Mario Bros GT The Grand Adventure aka SMBGT-TGA (c) Yours Truly