Hi Miguel
This is a very interesting project and this is my idea of how to solve it.
First, we have to select a graphic library to work with according to your needs:; it should generate responsive code and support major browsers.
Then, I'll need a copy of your site to work locally. In the file you sent me, you mentioned the type of graphics you want per product type so that's clear and the next step is extending VM's functionality to generate this graphics as seamless as possible. Nothing hard-coded.
When I'm done with the changes locally, I can upload them to your site (if you have a test environment it's great) or we can see it working on my machine using join.me.
Once you give your authorization, I'll set up everything on your live site.
Then you can test again but now on live site, to check the update is working correctly.
After you test to your satisfaction, you can release the payment (milestone should be set at the beginning of the project).
Of course, support is included so if after we go live, you find any issue with the functionality I delivered, I'll do the necessary corrections.
That's it!
One thing, in the document you mentioned your favorite graphic style. Can you please let me know where did you found it?
Please let me know your thoughts.
Best regards,
Yusely.