It is recommended to use cyanoacrylate glue to glue the model parts together. The gluing process should ideally take place on a glass surface. This will allow you to easily separate the model from the glass with a spatula in case of glue overflow. Use a nail or self-tapping screw to attach the model to the wall, and attach a bracket to the back of the model for support.
To achieve the wow effect, you need to place an LED strip on the back of the decor.