This was a little bit of experimentation with creating different effects, using red wine to add subtle warm tones, washing soda to bleach- which also adds a yellowish tone on some materials, probably depending on sizing or something. Using a vinegar spray could add darker tone, and the amount of it controlled by using it before or during development. There’s a limit to the amount of control though, as the strength of UV comes into it, as well as the material used, how long the chemicals have been sitting, the chemicals themselves…

I like the last one best, but I like how all of them add some dynamism to the still life.