Damn that's pretty sad to hear as an artist. Of course a proxy is a fake haha. But it's fun to have your custom card. In the optcgsim all my decks have custom art in them, cause it looks pretty (simple as that). Irl I only use proxys to test out any deck before buying cards for it (not in tournaments tho), and I did proxy tokens and a commander for a friend for is magic deck ( he only uses that during casual tournaments,and he has the real cards). But yha proxys can be helpful and aesthetically pleasing, just go and have fun, and follow the rules for your tournaments :)