Wow these are amazing!
These are much much better than the last ones what did you change in your processing? These are much cleaner and more subtle but still have some nice punch
Possibly the first one could do with a tweak to the black point to restore some contrast back to the shadows though
Before I was using Photomatix. With these I used the LR/Enfuse in Lightroom 4 to generate a very flat image out of my 5 exposures. Then saved a tiff and edited in the contrast and saturation and everything. I agree it is WAY better and cleaner than what i was doing before in photomatix. Also, i was able to use the same settings for every shots in the enfuse plugin which helped speed the whole process up as well. And...... the Enfuse plugin is donation based with a minimum donation of around $3.50 through paypal which I was very happy to pay for and would recommend to everyone after seeing the outcome of the plugin. I agree with you on the first shot. I've been trying to figure out what it is. Something felt wrong about it and now that you say that I totally see it lacking in the shadows as far as contrast is concerned.
The Samyang 14mm has some pretty bad barrel distortion, but these shots don't. Did you de-barrel them in post? Which program?
I did absolutely no "lens correction" in post. =-) I know what your talking about and i have actually been very happy with this lens for my real estate shooting. I'd rather have a 17mm T/S so i could have more control over my verticals, but I just don't have the budget for it right now.