How to make the house
First, model the windows out of transparent polymer clay and shape the entrance door. Use the different shades of brown to create the house wall using Fimo sheets in marble-look. Work the windows into the "wall". Place the modeled surface on the glass and work out the joints.
Before you harden everything in the oven at 130 °C for approx. 30 minutes, check the surface for fingerprints left by modelling and remove them if necessary (simply brush over them). Once hardened, your work will remain in the mold and can no longer shift.
Modeling decorative ornaments
Now you can decorate the basic shape of the witch's house as you wish. For example, twist two strands of Fimo paste together and use them as window frames. Shape small leaves and flowers and place them decoratively on the house. You can also harden them in the oven and fix them in place with hot glue.
Finally, place the LED light in the glass.