Natural Fitness website: Help us enhance a fantastic theme.

Tengeri Natural Fitness

Tengeri is an online personal training platform with a natural fitness focus.
We take an evolutionary approach to our training, our image is associated with natural themes and has a 'paleo'/primal feel.

Tengeri is looking to have an evolving image/animation created.
We envisage that it will begin as a static image of a simple plant/seedling/vine which develops/grows into a larger plant when the user expands the page on which it will be located. eg. a vine growing down/across the page.
The design will be used on 3-4 pages with different volumes of text on them. ie. each page will be a different length when expanded. As such, the design should have a generic aspect which makes it suitable for use on each of these pages.
The idea is to add some interest to a couple of pages that are predominantly filled with text as well as to enhance the 'natural fitness' theme of our site.
We currently like the idea of a growing vine or something similar but are certainly open to creativity. Other influences could include primal activities, people conducting animal like movements, the colours from our logo.
The image might change in a simple or complex manner, it does not necessarily need to change in a uniform fashion and might evolve over a longer period of time.

The image should initially be located on the righthand side of the page. It might 'grow' from the bottom to the top of the page, top to the bottom of the page or across the top of the page. We'd be happy to see any other creative ideas here too. Reference the screenshot of the 'About Us' page.