Like I said in the link description (hint hint), this was before ENB+FXAA plus most of the mods that we use today. Look at the dates on the posts. He took them the week Skyrim came out. So of course they don't look as good as our pictures do now. But these pictures on that first week after launch were fantastic. All of these pictures are purely vanilla. No post-processing at all. All he used was "no-clip, no-HUD, timestop, custom FOV, 2160p rendering, NPC spawn command".
Edit: Imagine if he retook all of these pics with Gionight's config + Skyrim HD + Official Hi-Res + another 100 texture mods + FXAA. What do you think they'd look like then?
Most of the images he takes are using the vanilla game. Look at his collections LINK
I did, and I wasn't impressed. Shrink any pic down and it looks more impressive. Also, I don't really care.