I need some t-shirt designs created

I need someone to design some simple illustrations to use with our logo on various t-shirt, polo shirt, cap, jackets. Scope includes:

- Designing a few illustration options for the clothing (brief will be shared)
- Superimposing the logo onto circa 20 different clothing items to check for colour matches and how it will look
- Searching the clothing company's website to look for some good colour options
- Sharing the illustration file and mockups so the clothing company know what to print, where etc