It's getting better very time last one was a bit too much detail for me, especially around the edge.

I think it would be "better" if the name Noble would be the only word on top and in gold, people who are not familiair with Noblecoin/eagle should also recognise is directly. Another thing to "think" about, some webshops use the (N) symbol http://www.blackblanco.com/shop/ (this btw looks really nice ) so it is recognisable as the name Noble is always in gold. You could put Liberty, Prosperity and Security below and the eagle a bit smaller to all let it fit.