24" cabinet for sure -- I like the 24x30 size for actual people storing actual stuff. if you're using a light that low-profile, be sure that your cabinets are recessed; otherwise, get something that will stretch past the top of the cabinet to light your face.

If this bathroom had a title, it'd be "Too Much" -- I don't see farmhouse or transitional; rather, I see too much pattern and conflicting items. Part of this is because of today's trend towards very simple/calm. Ways to combat this: - Start with the easiest thing -- this alone should make a very big difference: remove clutter from the bathroom sinks. You have loads of drawer storage, so this should be possible. Make it your goal to organize your drawers /keep out on the cabinet only soap and hand towels. I'd say do this one thing and live with it a while -- see if it's "enough". If not: - In general I like big mirrors in bathrooms -- they're so practical -- but yours seem to be missing the mark. With "so much going on" and so much clutter, the first mirror duplicates that mess and the second mirror triples it. Once the clutter is gone, this will largely be alleviated. - The mirrors also look unfinished -- they need frames. Some people are saying "Go with small, framed mirrors". I'm fearful that these will just add to the overly-busy look. I really think the problem is the clutter the mirrors are reflecting. - Lose the doo-whop curtain over the tub -- consider a more simple curtain. - Could the tree perhaps be recreated as a wall-piece for the blue wall at the foot of the tub? The tree is "too much" where it is -- yet you need something on that blank wall. - You say you've removed the blue mats and towels -- that's good. While I like the color, I agree with those who say that keeping the color scheme simple will "calm" the room. The rug problem wasn't just the color -- you had too many little rugs; I'd like to see one larger rug, but I don't see how that could happen. - The tub is the first thing you see, and it's kinda cramped between these two doors -- it has to stay simple. I don't care for the pebble tile around the tub, and it's not really a need. Also note that the tub-side-tile is right next to the floor pattern, and they're not playing well together. - Someone else said change the dark hardware to a silver-tone. I disagree. As it is now, the darker hardware ties into the light fixtures -- don't change one without changing the other, and I know you said you were looking to do this without spending big. If you do change both items, go with something simple that'll blend in rather than stand out.

@Stella Essentials is there a question?

Quemere designs makes that diamond shape. We used it in our backsplash. Ours is beveled but they make it in flat also. I believe Bedrosian also has the diamond shape.