I agree that you shouldn't use bin pulls on doors. I think it would be awkward to open a door with a bin pull as opposed to a knob or a regular pull -- especially uppers. Use the cobalt blue glass knobs on your doors -- the combination with the bin pulls and your granite sounds beautiful! Also, IMO, you should use two bin pulls on any drawer that is 30 inches or wider, and/or where you have two cabinet doors below the drawer. I used three different kinds of hardware in my kitchen: bin pulls, suitcase pulls and knobs. The pic below shows all three. (The suitcase pull is on the trash pullout). Also, on every drawer 27" or wider, I used two pulls, with each pull centered over the doors below. Good luck!

Can you post the size of the cabinet pulls (measured from the center of each of the two screws in the opened drawer holding them in place)? Only then can we know what could replace them, as your replacement pulls will have to be the same size unless you carefully fill the old holes that will become visible, which isn't always possible even if you work hard at it.depending on the cabinet finish. The knobs of course have only one hole so can be replaced with any knob, as well as with a vertical handle if you drill a new hole. The cabinetry looks quite traditional to me, especially the legs on the island, the crown moulding, and the trim pieces between many of the cabinets. Painting those pieces (and maybe the cabinet frames) a somewhat darker color might help emphasize those elements that visually disappear when they're white. Other possibilities for traditionalizing the look would include adding mullions to the cabinet door glass to give it a colonial look, and working up something nice over the arch window and the concealed exhaust hood. The tiger print backsplash is a bit much for my taste, although it may look much better IRL. Even though it's granite, I'd consider covering it with tiles of some sort.

I like what you picked out, but think they’re better suited to a very traditional cabinet design. Although an updated look those are similar in sensibility to what you already have. For a fresher new look I’d look for ones more similar in shape and design to your dishwasher. Simple with a graceful curve. Easier to keep clean too. Browse through the Leevalleyhardware.com and build.com sites for inspiration.

One pull per drawer is frequently preferred over two, and I think the general rule if you are using only one on a drawer is that it should be about 1/3 the width of that drawer. Personally I got many (many!!) samples of both pulls and knobs and I would recommend you do that as well. It was a huge help in making my final decision. Good luck!