Brake fluid is a bit dark…
Impressive, nicely done. I don’t dare share a pic of mine, she’s a dirty filthy girl

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With things being so clean it does look like your Power Steering reservoir is a bit low.
Astute observations. Engine is cold - fluid level at min mark. As for the darkness, it and brake fluid are scheduled for service at 200k, so soon.
As for those interested.... it is quite easy and quick:
1) Cool or very slightly warm engine.
2) Spray engine bay liberally with simple green diluted 50:50 with water.
3) Let it soak for a few minutes, but not dry because it will etch plastic.
4) Agitate with a brush.
5) Rinse with water. Garden hose shower nozzle is plenty. If you use a pressure washer, hold the nozzle far away from engine.
6) Repeat as necessary in the really grimy areas.
For most people, this is plenty. Allows quick visual diagnosis of leaks and other trouble spots just by opening the hood and a quick visual inspection of the engine bay.
For the finishing touch...
8) This is bizarre to most: spray a liberal amount of tire foam all over. Yes, tire foam; the cheapest stuff you can find. I prefer a matte finish. Admittedly, this attracts dust more quickly than not dressing it, but the appearance speaks for itself.
9) Let the foam set for 15-20 minutes while you're cleaning other parts of your rig.
10) Wipe excess foam away for a clean uniform finish.