The second guy, BTW, has probably had multiple skin cancers removed, probably because in early life he was in South Africa as a street musician get sunburned all day, looking handsome for the women! Now back in Ireland he's bemoaning the loss of the past life!
Dawid,
I like the monotone, it goes with the stone.
Georg,
To continue with the color of the first image, I find it works for such an Irish scene with such imposing buildings, but then I'd really like to see the rest of the building! Here, the two musicians are so distant from one another and the strong building is simply cut off!
This is tough to compose. Either one can photograph each separately or else go really wide angle and get the building too! Yes, this first image does also seem to be rather flat. Could be just the lighting or else perhaps might benefit from an S-curve to add dimension and in addition selectively darken the upper part of the building and lighten the lower part (and the faces) and darken further the edges and corners.
Otherwise one has little idea where to follow with one eyes.
OTOH, I may be locked in by portrait painting and the years with my father in law in the darkroom, dodging and burning! I just am so uncomfortable with flat, evenly exposed images, but that just me!
With landscape, say trees, the actual tree structure itself can draw its own patterns and make paths for the eye. Here, we have to either overcome and disrupt the very severe rigid background with shadows or else put in our own lighting.
Anyway, I am delighted to see such interesting characters in your pictures! I think this is a very rich area for you to work. B&W is perfect for this work, since one can leave behind the odd color schemes that should be considered a felony!
Asher