Heine, interesting experiment. I actually like the image, and if taken at face value, knowing this is processed to achieve this result I believe it is quite good, just a tough sell in an open challenge.
I can see why you liked this subject, I like it too! But it looks to me like you've gone overboard with editing ... possibly an HDR experiment ... leaving distracting halos around the building and to a lesser degree, the wagon. HDR seems to be the wave of the future, but I'd suggest backing off a bit.
My first impression is that this is really, really colorful. I like the framing and composition, but whether the image is successful or not depends on what you are trying to accomplish. To my eye, it looks too much like a cartoon, and would be better if the processing were toned down a little. Others may see it differently.
Over saturated/over processed IMO. The halo/glow around the building against the sky is distracting. The composition is very nice, but would be better if less processed. IMHO
Way overboard on the HDR. Sorry... that's a big pet peeve of mine nowadays. That takes a shot that would have probably been a 6 or 7 down to a 3 for me.
Way overdone here. You have an beautifully captured image, great focus and historic feel, that has turned into a cartoon with the processing that was done. Sorry. A minor punch up of the colours and this is a 7, but the result you have submitted is a 4 imo. Sorry. Good Luck.