Oh, I totally understand that but you wouldn't need to invest much time at all.
You see, I'm working on a huge Final Fantasy® fan game and as a part of it, we want to include Final Fantasy VIII™'s »Triple Triad« as a mini-game. For that I'm looking for talented artists, such as you, to do some of the illustrations. Your Iguion would be perfect for that cause and all you'd have to do, is send me a version without the distance fog and with transparent background, if you have. If you don't you could maybe just allow me to alter and use your artwork.
One thing I need to mention is that our game is a non-profit project, that will not be sold and doesn't infringe copyright. Also of course you will be mentioned (in several places) if you allow us to use your artwork.
If you're still uncertain and maybe want to check out some other cards that deviantArtists have contributed to, you can do so here: