This is funny... You made me like a PS pro~~
I don't know what are needed to prove the genuineness of the photo. To be honest, I even don't know much about Photoshop as I have never used it, and I DIDN'T have time to play around with it. If you really want, I can post bunch of photos I took on this trip... What I can say? It's a raw photo, taken by Pentax K2000 DSLR... What you said makes me feel good on this camera :)