Haha :D nicely spotted!
And there I was feeling all smart and original. Never seen that card, played magic once about ten years ago. No worries, they can't sue us because the composition and motif is similar, takes much more than that. I'd have to literally copy a larger fragment of that artwork and do a bad job of disguising it so that there's no doubt that I stole it. Otherwise anyone painting angels or dragons would be long out of business, buried under WoTC lawsuits :) Would be kinda fun to see WoTC and GW duke it out over stuff like Dwarves or Trolls though...
Back on topic: first time this kinda thing happens to me and I really feel kinda guilty for no apparent reason? :(
This can safely be closed.