Celtic inspired design

This is a t-shirt design I found based on the Celtic cross. You see this cross design with the circle and the knots in a lot of Irish churches and graveyards. I see it in a lot of tribal style designs, which seem to be pretty popular right now. There is knotwork in the cross itself and it's laid out like a piece of Celtic jewelry, with a jewel in the middle. The black and white tribal patterns in the background are like modernized versions of some of the swirled patterns we see in the Celtic jewelry and manuscripts and they echo the shape of the cross itself. Behind the cross, very faintly in the background, is a very similar pattern to some of those in the manuscripts, particularly behind the top right corner. I thought this was a pretty good example of very modern design inspired by Celtic patterns and icons.