Designer for Tshirt Business

i am looking for a Designer for my t-shirt Business. I need 50 Designs for the first time. i send you 50 examples. you must make new shirt designs for me, but dont hurt any copyrights.

The design musst 4000x4000 px and i need the file .png and the photoshop file.

I pay 1$ per Design.

For 50 Designs also 55$.