Nice seat.
IMHO, depending on the size of the seat, it might look disproportionate with the rest of the bike, if the seat is on the small side.
I have seen that type seat on bigger type bikes but they seem to be on the bigger side not on the bobber type or size if that makes sense.
Also, the fender rails might throw it off somewhat and take from the look of the seat.
I suppose that the fender that you plan on using has a lot to do with the type of seat you will use as well.
I remember seeing a Valk where a guy had used the rear seat as the drivers seat and it look good, plus it had the "HONDA" print on the rear of the seat.
BUT who am I to say, your creation and there is only one person to please, in the end, it will be all good as we all have experienced your progress as you go along.
Can't wait for it to be done and see you riding it John.
It would have been great to see you come riding in to the Pizza Party on that ride.
Thanks for taking us along your building journey
YOU STILL HAVE 3 DAYS JOHN 