3D illustrations

I need a series of 3D illustrations creating to show a new product called Whisper Safe.

Some exmaples of the visual type, viewpoint and quality are as shown in here: https://www.dropbox.com/sh/po8zeqzl9dr86uh/AACej_0J8G9kl_GRiy1Y8wG4a?dl=0

The product I need showing is as sketched here: https://www.dropbox.com/s/t8gc96q4tjm9e13/Whisper%20Safe%20screens%20sketch%20brief.pdf?dl=0

Its a divider made from our polyester felt product which you can see here: http://info.creatif.org.uk/whisper-freestanding-screens

I need a few visuals of a cluster of desks with the screens at 2 height from the floor - one at 1400mm and another at 2100mm.

I need a series of images on a white background showing the different head cut options as features (as sketched). Would be good to have the visuals also show these head designs. Same with the vertical edge.

These visuals are needed urgently so only bid if you can do them fast (this weekend).

Please also submit close examples with your offer because I won't appoint anyone if I can't see their quality of work.