This dahlia is called "karma choc". They are of a redish near-black colour and scent like chocolate. They look like velvet - really plush and lovely.
I thought a low key would suit this flower, but I struggled at the balance to have enough contast, showing the velvet feel and colour. I retried, but by then the light had gone, und I did not end up with something I'm ok with. But this is all I have.