Quartz thickness to butt against 40mm wood worktop (need reply within hour)

Hi all,

After some quick advice please?

I'm undecided on 20mm or 30mm quartz worktops, however, the worktop will but up against a wooden worktop which will expand to be a breakfast bar/table.

Will 20mm quartz worktop look too thin to butt up against a 40mm worktop, or should I stick with 30mm quartz.

Alternatively I could use 20mm quartz and a thinner (30mm?), wooden worktop. But would this look too thin for a wooden worktop?

Mock up of wooden worktop/table below:...

Quartz thickness to butt against 40mm wood worktop (need reply within hour)