Your link for more pictures does not work for me. I do like the glass backsplash tiles you are considering. I also like the small dark square tiles you show at the bottom. They relate well to the dark speckles in your granite and would look good with rubbed bronze fixtures. If you are going to trim the glass tiles I think you should use those dark square tiles on both the top and bottom of the glass tiles instead of the lighter squares in the picture above.

You've got a great space so far. As for matching the fireplace tones, I would focus on working with your countertop and floor. On my monitor there seems to be a disconnect between the color families in the fireplace and your kitchen with the fireplace more pinks and greys and your counter more golds and creams, but I know pictures don't tell the real story. Someone else just posted pics of Architerra tile and it could be a good match with your existing tile. Also, Seneca Tile sells crackle tile with more of an old world feel in a variety of colors, sizes and decos. I'm no decorating guru but from an old house standpoint, tile tended to be smaller in size than many of todays offerings. Try to keep the scale in line with your fireplace - what is it 3", 4" squares? Good luck! Here is a link that might be useful: architerra tile

They actually make a narrower tile that should fit perfectly under the window so I am not too worried about that. Definitely not interested in combining it with cream subways/ dark borders or pencil liner - those can look nice but really aren't my taste so much. It seems like the vote is still split more or less 50/50 which I guess means that we just have to decide what we want to do and go with it! I was hoping to get into the tile store tomorrow but I think it's going to snow so we may have to postpone. Annoying as I want to get this ordered but am not quite sure how much to order.

I'm assuming you've propped one of your White Dove cabinet doors against the marble & don't like the two together? Could you find an alternate slab? Slab marble is a more dramatic look than subway tile but if you don't like the slab.... Possibly add some trim pieces similar to this picture to your hood - not the doors but the trim pieces on the bottom of the hood. I'm not sure your hood shape could pull off the marble. I've seen pics of boxy marble hoods but they are usually in a contemporary kitchen without a traditional large crown molding (I do love your crown molding). edit: to clarify, your kitchen could totally pull off a slab marble backsplash. I'm just not sure how a marble hood would look in your hood style.