Looks good... I love the fact the seller mentions it's good on gas https://www.hemmings.com/classifieds/cars-for-sale/buick/riviera/2138407.html?refer=alert
That looks like a particularly nice one, even has the correct 8 track player without the Buick name on the tape door. LOADED as well. I bet a good paintless dent guy could help out that dent pictured.
Looks like a nice, clean, original car. I like the fact that you don't see many in that color, which was new for '68 and very popular except on Riv's for some reason. Imagine it with a set of "correct" road wheels on it.
My 68 Wildcat is the same color and I was planning to change it, but I've grown to like it so when it's time for a repaint (soon) I will keep it Burnished saddle with the factory white painted roof.