Well, I agree with those colleagues here, who do not seem to be impressed with either tsuba. Forgive me my bluntness, but they show inferior workmanship and they simply look dull and boring. Your lovely menuki do not deserve any of these tsuba. I think in your search for something matching the menuki you might end up with something rather awkward. I have gone through this - it has started with a rather bad Goto shishi and peony tsuba - I have managed to add the same motif in menuki, fuchigashira and kozuka - all shakudo in nanako-ji and kin-zogan. The result was just awful! I shall never try to do this again. I am still asahamed of this "set".
My advice: Don't try to find a direct match - it wil always be only "close", but never the real McCoy (as to be found in genuine sets of koshirae). Go for an honest steel (that's my personal preference, don't shoot!) tsuba with any of the usual warrior symbols - be it grass and stirrups, cherry blossom, broken fans, or just about anything else that might symbolise a samurai. It doesn't have to be armor or weapons.