Why not have a look at how a commissioned oak under stairs storage solution may look.
This bespoke under stairs storage solution was commissioned and within 3 weeks it was installed. You'll notice all the grain matches. And we have maximised the cloak room to take as many coats as possible. Including the installation of a pull coat rail. The shoe storage has been fitted behind an opening door, behind which is six shoe storage drawers. Plus we have pull out units for those hard to reach places too. It's probably to best under stairs storage solution I've seen.