Hello everybody and thank you for your comments. So, the situation is like two more arches on the sides of the one you see, I tried to open the blinds but light was not even and creating spots on the front wall so I closed them again, to mitigate the light spot on the tiles I tried to use a GND but it looked really bad, I have a set of ND and GND on my bullet list but far to come. I bracketed 9 shots to balance the bright landscape out of the window with the inner ambient light, have been trying with less shots but always missing something, also did attempts with a polarizer to try get a more saturated sky but no much of an effect with the sun behind me which is what I wanted because the front window faces North and in the earlier or later hours the Sun would be on a side creating uneven light conditions in the room.
As far as distracting elements such as the shade showing top of the arch or the box containing it, well, not that good at retouching and also like things to show how they really are and that's why I was too a little scared of the HDR but I gotta say when the purpose is to just balance shadows and highlights it doesn't look too bad.
Grazie