Design Social Network Images to Promote Web Design Company

I would like someone to create 5 different designs for images I can post on social media web sites such as Twitter, Facebook, LinkedIn, Instagram to promote a web design company.

The same 5 designs can be used across all social media sites but I would need to be provided with the correct dimensions for optimum sizes for each.

I will send across the company web site and logo so that you can design these according to the branding of the company.

If you could also come up with the tagline and hashtags to use for these posts that would be even better!

Look forward to hearing your proposals!

Looking for best price / quality and examples of your previous work for a similar project!