Interesting architecture!

Some observations...

I think the composition is a bit to much straight forward (=dull).

Maybe try and get outside of "the box" and go for a more bold and dary angle (maybe something which is more unusual). You don't have to cover all of the architecture in one frame. It now looks a bit tightly cropped imo.

With no colors a bw is the definite answer so that would have been my preferred choice for posting.

At the very top of the window (and composition) it looks slightly blurred.

It does look a bit flat too. Maybe the light was not present when you shot this one...

...and do enjoy your vacation!

I agree with Patrick remarks and I'll add, just to make it stronger, Go B&W! It's much better for this kind of photography.

Patrick covered it all, i guess. I'd also like to see a B/W version of it

I don't have nothing against "simple frontal" composition of buildings, many times simple is bettter.
The building is indeed impressive.....maybe some work to increase the higlights can help.....and another light may reveal more details....It is difficult to decide about a composition, what to include or not......In this case I may have chosen a 600 pixels wide format in order to apreciate it better as a whole.
Nice work....thanks for sharing.
Carlos

completly agree with carlos, a smaller format whould have more impact as it whould let us apreciate it better as a whole.

inpressive building. well done.

Nice work, like the blue colors!

nice work

It's nicely setup for a "religious" photograph, though it is a little off center. If you get the chance to retake this picture you may want to think about doing it when there is some light inside, to make the windows stand out a little more.

Other than that i think it's good, and the damp stone adds a something extra.