I used a Tudor house template for the house, the treehouse is free-style. The windows are made of melted candy (Campino, a German brand, I live in Stuttgart/Germany). The shingles are made of Cinni minis, the beams are made of Fondant. I "painted“ the gingerbread house with frosting (eggwhite and sugar). Next to the house which is on a wooden board with a bulb on it (made by my husband), there is a greenhouse with windows of gelatin sheets.