The colors for this set are very nice. The base color is hard to describe but looks great on both dark- and light-colored boards. I find that the keys in the accent colors appears lighter and more bright than they appear in the images, but it depends a lot on lighting. I ended up going with just the uniform color for these on a black keychron Q1 Pro and it looks great.
My one complaint would be that I would've liked to have had some more R2 and R3 options, particularly a R2 home key.
The Violac set is my go-to keycaps for my Wooting 60HE. They are a comfortable feel and a unique look. I like the DCX profile. I'd like to see a Violac accent kit with reverse colors similar to the ESC and Enter keys. Maybe a space bar and WASD.
These keycaps really accentuated my Keychron Q1 Pro. The sound as well as the feel make them my favorite keycaps. I can't wait to get more of the DCX profile.