Wow! I really love number 4! But 1 and 2, even though it is b and w, it looks a bit blown out do just try to add some contrast or put the bracketing down, number 3 Is great! Just try to use a wider aperture because this is using leading lines composition, and I'm stuck in the middle, because that is the only one focused. If you put the aperture up, the whole ledge would be visible and my eyes would lead to the end to the photo. But I still love your photos! Keep it up!