It's done! This was a very enjoyable knit -- easy enough to knit while watching a movie or TV (or, in my case, while studying for a qualifying exam).
Malabrigo Rios is definitely one of my favorite yarns to work with and it is very soft. I've unfortunately lost the labels for the dye colors for this yarn, but if I do find them I will update this page. While knitting this I fondly referred to them as 'mermaid colors' because of the greens/blues/purples.
The scarf is not too bulky and may actually be better for the late winter/early spring. Below freezing temperatures here in Western Mass still have me reaching for my bulky wool scarves.