Regarding the first one; im not certain the patina is how its supposed to look, infact the whole tsuba has a really .. excuse the term here, amateur feel to it. Perhaps because it has got tempered with but judging from the shapes, i dont think thats the case.
The scratched lines to define the seppadai and the ridge are odd and out of place, the lines are hesitant. I dont know, i am not an expert but all the akasaka tsuba i have seen showed elegance, refinement, smoothness and a profund sense of aesthetism.. excuse me if i insulted a master tsubashi but, i dont like *this* tsuba.
All that is my humble opinion, wait for the others.