It might be worth while to consider the rest of the space also. Your breakfast bar/kitchen is located quiet closely to your dining table so depending on your kitchen space (apologies, I can't see too much of your kitchen from the photo) you might want to think about the overall style you want to achieve for you entire open plan space, and select pendants that would work for both your kitchen and dining. This is a project I worked on recently that shows how two different types of pendants can work harmoniously in the one space that is most similar to your kitchen and dining set up. Keep us posted on what you decide!

Yes definitely consider your furniture placement. Your lights should connect to the rest of the rooms decor. That is over the coffee table or over side tables. A cluster might work if you vary heights and consider some changes in size and shape of each light. See some examples below. Your light choice is lovely. It will however throw that pattern all around the room, something to think about if it's to be your only light source. You say there will be a fan as well. This will make the pendants move, another point to consider.

Hello Northstar 1 thing to remember when choosing your lights .If you want the light down choose a down facing lampholder, dont drop them to low as the GLARE from the globes in your eyes every time they are on is annoying as, every lit pendant you showed had an incandescent globe so if your going to use Fluro globes they will look worse.LED globes with a cleeear glass would be best. Avoid carbon filament even though they look great its a low light output. Depending on your budget take a look at Mondoluce on line they have some amazing glass pendants from Italy and in multiple sizes.

A cluster pendant would look very nice with the bigger space you have, however, just be careful as it looks like you have a nice window light and you dont want to block out too much natural light, as natural light is the best for applying makeup, downlights tend to create shadows across the face making it hard to evenly apply makeup or grooming. Just something to keep in mind!