Ad words baners design

Design details: We need to get a few of ad banners designed, and we're looking for an experienced professional to help us.

We need to design banners as follows:

Copy (not final):

Fast Invoice (probably the logo)
Billing, Expenses, and automation.
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fastinvoice.com


Desktop Sizes

250 x 250 square
200 x 200 small square
468 x 60 banner
728 x 90 leaderboard
300 x 250 inline rectangle
336 x 280 large rectangle
120 x 600 skyscraper
160 x 600 wide skyscraper

Mobile
320 x 50 mobile leaderboard

Here is some documentation on the subject, where you can see all examples.

https://support.google.com/adwords/answer/1722096

Please provide us with a quote containing examples of similar work you've done.

Quotes without previous work examples will be ignored.
Ideas for the visual style: Professional and visually attractive
Extra notes: See https://fastinvoice.com