Help for improve basic lightning setup with eevee engine (zenital subdued light)

If you haven’t yet take a look at this thread for general eevee arch viz rendering tips: Realistic ArchViz from Cycles to Eevee (with tips)

I’d concentrate on getting the canopy lighting right at first, artifical lights after that should be easy, most of them look like just a single spotlight/pointlight can get it close enough to reference.
Multiple bigger area lights should give you soft enough lighting for the sky light.

Big area lights can take a lot of samples to clear up in eevee so using multiple smaller ones with lower intesity can be better for render times (and your viewport won’t flicker as much), altough you’ll probably need to use custom light falloff on them. (EEVEE, Lamp Size and Diffuse Lighting for reference).