Professional Elegant website

I need designers/website creators to provide image mockups, the mockups can have 'demo' watermark on them but must not advertise any company etc...best design will win bid to create site... Mockup designs should be geared towards showcasing a professional company, specifically a scientific research institute/lab....(should have nice images...cells, glowing liquids in tubes etc, nice colors....microscopes? people lookin in microscopes maybe...people enjoying life in old age, enjoying grand children?(ie as result of their research) You may also show demo work instead if its heavily animated/flashy etc....(otherwise provide image mockup...)