This wee beastie I'm more sure of though, even if I couldn't get great pictures as it scuttled across the floor in the gloom.

It's very likely a (wounded) female triangle crab spider (Ebrechtella triscuspidata; Drieck-Krabbenspinne or Blattkrabbenspinne in 🇩🇪).

Crab spiders are deadly ambush hunters & I always enjoy / am horrified by them in the garden 😬✌️

#Heidelberg 🏰
#Photography 📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay 🐞
#MacroPhotography 🔬
#ArachnidsOfMastodon 🕷️
#BackGardenEntomology 🪲

@markmccaughrean It's missing a leg!
@ethergear Well spotted – possibly a winter-over from last year, carrying some war injuries?
@markmccaughrean the eyes on you in all directions are particularly piercing against the colouration in your images
@markmccaughrean fascinating! And thank you for the detailed image description. 
@markmccaughrean I found a similar spider the other day, I cut some rosemary to make soap and as I was washing it a spider fell down.
It did not bite, it was calm and docile.
It raised it's 2 frontal legs as if praising God, I found it funny but when I returned it to the rosemary plant it did the same and it's legs looked like rosemary leaves, that's why I didn't even see it.
I found it very cute.

@Psyche30_ Cool 🙂

Crab spiders are ambush hunters & are often found in flowers where they await pollinators.

Our lavender bush usually has one or two much large goldenrod crab spiders (Misumena vatia) in the summer & they’ll happily catch honey bees, then injecting them with an enzyme which dissolves their innards into a drinkable fluid. Quite a thing to see.

Harmless to humans though, as you say.