u can put some flowers in some pots, make a roof window and cover the bottom of it with trapdoors so u can open and close it when u want, put some carpet and hide lighting under it to disquise ur lighting, make a basement area u can decorate with stonework which is generally the easiest style to learn when building, u can outline ur house with a wood frame, u can try to instead having a basic cube house, try to make its shape a little different, u can use leaves as bushes, till some dirt for a path, maybe add some water around ur house, pressure plates to open ur doors, idk what else that isnt too advanced