Linen question(s)

Using black table cloths will make the color of the runner pop unless your colors will clash with the black. Like if your colors were baby blue, blush and peach, I wouldn't use black linen.

View Quoted Comment Colors are: lilac and dusty blue

No I think if the tables are decent, just a runner could be really nice! Unless you mean the color over black. It's not my style, but I'm sure you could make it work. 😊 I do think black is a harsh color, so it would probably need to integrate into the theme since that's so many tables and so much black.