Creating 3D Models

3D modeling services are required. You need to create 3D models of children's play elements. 3D models are required for shopping malls. We need 3D models of tables with sand, pools with balls, houses, soft modules, benches, etc.
I'll only buy all the models. Individually, the models are not interested.
Write your proposals on cost and timing. Your portfolio is not interesting to me, payment will be only after the work is done.