Similarity between RegiaArt (my artwork) and Air Jordan 4 "Fire Red" Retro

Look how similar is this Air Jordan 4 "Fire Red" Retro with this 2004 REGIAART painting!! ??

https://www.facebook.com/photo.php?fbid=10150964989808723&set=a.400484863722.179640.504148722&type=1&theater

I list this RegiaArt painting on eBay in 2004 and now I found this sneaker that is very much inspired by my painting.

What should I do?

Some people think that Artists has to work for free...