How to build 1/2 + 2×2 image grid with text overlays

Hi Enfold Team,
I’d like to reproduce the attached layout: on the left one large image, and on the right a 2×2 image grid (four tiles), each with a small text overlay (title + meta line) — please see the screenshot: http://neu2025.dc-gmbh.com/support/template.png
Using the ALB I can create a Grid Row 1/2 + 1/2 (large image on the left), but on the right I can’t nest additional columns to get two columns and two rows. Masonry or Portfolio elements come close, but I need a fixed 2×2 arrangement (no reflow), very small gaps, and always-visible text overlays (not only on hover).
Is there a native way to achieve something like this within ALB?
Or would you recommend a combination of existing elements or a small custom shortcode to get that layout?
Thanks a lot for your advice and best practices!
Best,
Diana