Yep. Made a few more icons from my trip. That one is Cape Sounio, about an hour out of Athens (I think it was an hour, I slept the whole way there and back). It's the Temple of Poseidon.
I've also got a lantern from the Kamarimonon Gate, some from Vegas, and a couple of the shuttles.

Like you, I've gone back to fix things, though I usually just locate the .psp file and work from that. Sometimes I come back to that, but usually I keep playing around with actual pic. I do always save them in a similar format to .psp. I just have a super old program. I really should buy one with my tax money.