Animated Website Header

I am looking for an animated website header for my non-profit. I basically want a 15-20 second animated header that pretty much replicates the 16-20 second mark of this video Obviously this is only 4 seconds and there would be more to the animation, but this video should give you a feel of the style and what I’m looking to ultimately achieve. Please touch base if you are up to the challenge and have a portfolio that I can look at. I’ve had 3 designers say they can do this and then they ultimately couldn’t and it’s been a monumental waste of time,. Please respect my time and yours. Please provide a quote if you believe you are able to replicate this. Thank you!

Are you looking to pay or is this a collaboration?
Pay to hire someone

Is this ongoing work or a one off job?
One-off specific project or job

How would you prefer to pay for the project?
Fixed project total

Enter your job or project budget range? (USD)
$250-500 (Beginner)

Do you have an estimate of the job or project length?
A few weeks

Are you a company or individual hiring?
Company

When do you want to have the freelancer secured by?
1 week

What is most important for this job?
Quality

Where did you find Twine?
Can’t remember