the dining and living have all warm tones w flooring/wall colors/ bamboo blinds ...the kitchen being all white and esp the backsplash leans cool ...the marrying of the two w pendants being at eye level from all angles is the outcome youd like one assumes....for perspective. I would look at frosted glass that leans a little warmer. You have white lamp bases /lamp shades/ white chairs / white trim .....so rather than mixed metal Id look at the white for continuity. You have drum shapes elsewhere so not sure how consistent you want to be with that. You've done a few things w glass doors and the counter / backsplash so I dont think a really complicated or large pendant is needed....simple lines ....simple straightforward finish in other words.

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I like the kitchen pendants that you have, although if you are set on replacing, I think Herbflavor's Effimero is nice. I suggest you replace the light over the dining room table--perhaps move the 2 kitchen pendants there.