I need an explainer video for my website

We have a website called Crestere that offers business advice.

I would like an explainer video to use on the homepage. We have had an Avatar called Tina which would look good if she was talking through the animation.

I have had the voiceover created and attached it to give an indication of the length of the clip.

He is the website, if you could take a look at the video on the homepage: http://www.crestere.co.uk

I will be awarding the job to someone that has taken the time to look at the project and not just send a price over with a lot of questions

Thanks

Anthony