Low Poly Solar Power Rooftop glass house 3D model

Low poly solar power panel glass house on rooftop. have a tea seat under sun umberlla, a simple kitchen inside house, the solar power panel is conntect the control panel. always use custom shader defult texture. i just know how to use blender, but the website told me to make more format, so i dont sure other 3D format is really can work, if you know have any problem, can tell me to fix it.

Glass and Water just work in .blend . Solar panel change to a simple image (haven't normal map, like privew 10), may be i will upgrade it after tomorrow.