Originally Posted by
GrumpyDiver
It looks like you might have taken advantage of the Google offer of free Nik software and got some practice with SilverEfex Pro.
I agree with John that your second image is the strongest. You have used an important compositional tool, simplification, to craft a better image. There were simply too many conflicting colours in the shot, as shown by the colour shot you posted and eliminating that gave you a stronger image.
The third image is not working as well. That faded late 1800's look just does not look right in the modern setting. I have used it in some shots of a ghost town that is from that era, but that is probably the only time I have found that particular filter useful. What it does is it eliminates some of the superfluous material in the image. Had you done this by rearranging the position of your subjects and moving things around in the room, you would have gotten an even stronger image in the first two shots you posted. Composition lessons learned, I hope.