Slightly a side story, so no one complains: In 1994 when I was 14, "Heart of China" came out and VideoSpigot came out and all I wanted for Xmas was a video camera and an interface to record short QuickTime movies in locations around my house, so I could string them together into a dark futuristic CD-ROM game. (in SuperCard, if you're wondering). That would have solved all my problems creating art!
It wouldn't have. Make your game as a sketch with whatever sketching tools you have...but don't expect technology to rescue you from needing other humans to make it good. AND DON'T UNDER-RATE OR UNDERPAY THOSE PEOPLE.
Because trust me, if you're disappointed that AI isn't giving you good enough art, you're no visionary. You haven't even tried people.