Decorate a rented studio by choosing minimal, impactful decor like a single black twig Halloween tree in a woven basket paired with two velvet pumpkins on a coffee table. This approach feels grown-up and seasonal without overwhelming limited space or violating rental rules. Use small-scale candlelit vignettes for cozy ambiance. Focus on layering textures and using warm neutrals to create sophisticated Halloween styling suitable for small, temporary homes.