Some cool square wedding cakes images:

Square Cake with Copper Button-Centered Flowers

Image by HoneyCrumb
Ivory square wedding cake (5-1/2"-9"-12") with 5-inch tall tiers. Paneled with fondant.

Handmade gumpaste flowers painted with edible copper and champagne luster dusts. Centers created with a silicone button mold from Global Sugar Art (USA).

Button-Centered Flowers with Copper Highlights

Image by HoneyCrumb
Detail of handmade gumpaste flowers painted with edible copper and champagne luster dusts. Centers created with a silicone button mold from Global Sugar Art (USA).

Ivory square wedding cake (5-1/2"-9"-12") with 5-inch tall tiers. Paneled with fondant.

Elegant Purple Square Wedding Cake

Image by Graceful Cake Creations
Square wedding cake iced in purple butter cream with a quilting pattern, silver dragees, white ribbon, fondant bows and white roses.