Well for the feel good idealistic answer pic 1 is what I'd look like after being in Gensokyo for a while, provided I don't get eaten right away. It may take a good while if Yukari, Eirin, etc refuse help but hopefully I'd manage to become a Youkai-magician to escape the dreadful fate of death so early in Youmu's life. Maybe even pick up a ghost half of my own It seems to me part of the reason Gensokyo isn't crawling with half-ghosts is that they're relatively new having resulted from exploits of a magician from just a few generations ago that can be passed down to offspring. No clue if how this was achieved got archived. Depending on how long it takes my hair might be gray or bald instead.
The more realistic, less flattering answer is pic 2 but with dark brown hair, blue eyes, and fatter but I've been working that off fairly consistently so I won't look too much like an unkempt neckbeard.
Next time I go to get a haircut though I'm going to try rocking a buzzcut. It's a pain to keep my hair looking good and I think it might work for me. For beard I've been trying a variety of styles to settle on since my old one was only alright. Currently trying a bit of a goatee. /blog
All styled slightly more towards 2hu art of course.