Assess your lighting. We spend a lot of time pampering ourselves in the bathroom mirror, so your lighting should be top-notch. Maximize as much natural light as possible, and be sure your vanity mirrors are flanked with lighting to reduce shadows.
If the ensuite bathroom allowed - this long bench gives me the feeling of a larger space with 2 sink areas.
Ignore fittings and colour palette
Would also need drawers
We don't necessarily need 2 sinks though