All three have their own distinct aspect of dawn.
The first has the most nicely graduated dark to light and punctuated by a rising sun - quite tranquil. The second looks like the “business end” of the morning - harder and more industrial in nature. The third one is very subtle but very focused on the one reflected building surface to convey the message. Mongo likes this one best for sheer photographic interpretation. Nice work Akira - we should get you up early more often.