I like the pendants you want but IMO the ones you have a good size for that island as for stools I like swivel stools to save your floors so guess a wood stool with a swivel seat would work I actually like what you have.

I feel like the white ones are ultra-contemporary and your style is more transitional. What about a glass pendant? I'm not seeing natural wood for the stools with that dark floor. Are you trying to go for a more contemporary look?

The current bar stools look like they'd match the more contemporary pendants you're looking for. We do have modern wood barstools in ash that have light stain options that would match. Natural wood stools with no stain may contrast the floors and modern look it seems you're looking for. Here's an example of the stools we carry:

Here's a link to it for a closer look. It could a starting point if you like the color and style. http://buff.ly/2h0400A