You're misunderstanding why people are calling this Sims-like. It's because of sterile environments that evoke memories of interior design software such as Sierra Home Architect, not because you've somehow managed to perfectly capture that elusive slice of suburbia. The Sims were pretty poor in that regard too, it's nothing to be proud of.
If you can't do 3D well, but you can draw, do 2D. If you can't draw, don't bother modeling or making any kind of art assets, they won't look good. If your art assets look like they've been directly taken from one of those 3D model library DVDs, don't bother putting them into your game if you can't find a way to create a passable level of visual cohesion between them, even if you just wing it by clever use of colors and filters.