Fine Art America & Pixels.com are essentially the same company and my work is available through both websites. Mainly, Pixels is being promoted for new product updates, like phone cases & T-shirts, and FAA is geared more towards the Fine Art market. So, all my work is available through each website, Pixels.com just offers more products!
As for my T-shirt designs, I will continue selling through TeePublic as it provides a cheaper option for my customers. However, I'll also offer my t-shirts, now, through Pixels.com as they offer more premium quality options!
Take a look at all the soccer t-shirt designs available on Pixels right now - soccer t-shirts for sale. Also, poster prints are available as well - soccer posters for sale