Design Web Illustrations

we need around 5 illustrations/diagrams to be uploaded on our website and to be used in other collaterals like brochure and presentations.
The input will be a ppt file, with our general idea on how we expect the representation to come out, need the seller to create the images creatively to drive our concept. All the images will maintain the same look and feel, color pallettes and fonts.

We expect more requirements on creating 3-4 more illustrations and some borchures as followup work in the month of Feb.

Sample and input output is attached.

We expect to finalise the selected deisgn over 3 revisions.
Start Date : Jan 25, 13
Deadline (after all revisions/feedback): Jan 30, 13
Deliverable: Editable EPS files, and imgaes in low, medium and high resolution.

Need to see some sample work along the same lines from the bidders.

We might need minor revisions on the diagrams after the delivery, so we can use the images across collaterals.

Thanks.