I've noticed a recent trend of the vertical color on the island matching the vertical color on the splashback. Liking that trend. So I would say go with the turquoise glass splash back color. Deepen it a little so the hue is closer to that of the floor. Cant tell from pic whether island cupboards are the same color as cupboards above the splashback. If they are, all the better. That then brings the turquoise/white combo forward into the room and gives some unity.

Clear island bench. For prep,serving,eating, etc. ONLY Keep the messy dishes away for both cooking and cleaning

Hi Lil, I believe your original plan works much better than the revised version. While the notion of ideal working widths is great, the larger problem here is the post. I worked on a project very similar to this last year where a post could either be connect to, or separate from the island. What we found was that by separating the island the space between island and post became very awkward. It's not enough of a space to comfortably walk through or be seated at the island in front of. Instead of your room feeling open and generous in proportion, it is going to start to feel cramped and awkward. We have a kitchen in our showroom (Kitchen Studio Tauranga NZ) with a 6ft gap between bench and back wall and it works wonderfully. It allows someone to work at the sink and a second at the island with ease. Stick with the original plan. It will feel a lot more spacious, without compromising work flows.

Ours is 950 and 2.4m long.I think as far as looks go, it depends how long the island is. If it's a very long island and less than 900, it would look out of proportion. Likewise, if it's a very short one, it would look wrong to have the width any more than 1m wide.