Design Planters for public space

We need planters for a public space. We will need different contemporary designs which can be realized in fiberglass. We are looking at contemporary and urban designs. We need 10 designs. We will need complete files for these including 3d rendering from various angles as well as 3d max, sketchup files. The basic idea is to have one planter design and then develop that into three sizes. Small Medium and Large. We need 10 designs and then we can develop bigger and smaller than that. The requirement is for a full fledged project and we will consider only serious designers with the required background and experience in furniture design who can bring some very contemporary and appealing designs to the table. I have attached some images to the project to give a better understanding of what is expected. We will need the renderings to be full 3d taking the surrounding environment into consideration.