Rooms and objects you can put straight into a portfolio, shared by the people who made them. Open the builder, click Files, then Library to add any of these.
Object · Tools & machinery · 14 KB · 2,678 triangles · starter pack
Credit: Witches House By 7ka — https://www.cgtrader.com/designers/7ka?utm_source=credit&utm_source=credit_item_page
Object · Architecture · 7 KB · 104 triangles · starter pack
Credit: CC BY 4.0 — https://sketchfab.com/Brynnnnn — https://sketchfab.com/3d-models/low-poly-isometric-rooms-d53af0ad289a403598ee2cb41d84608b
Object · Decor · 12 KB · 2,168 triangles · starter pack
Credit: Witches House By 7ka — https://www.cgtrader.com/designers/7ka?utm_source=credit&utm_source=credit_item_page
Object · 19 KB · 370 triangles · starter pack
Credit: https://www.cgtrader.com/designers/izibrizi?utm_source=credit&utm_source=credit_item_page