I had left the color management feature off in RawStudio as it is marked "Experimental". I didn't want to deal with buggy software. Turns out, color management has an impact on the colors.
Here's a photo I processed with RawStudio that I think turned out well.
I apologize for the missing EXIF data. RawStudio doesn't seem to support it and I haven't taken the time to figure out how to easily get it back.
I also have a bunch of portraits with nice color now that I turned on color management.
Of course, I'm still open to suggestions for getting good images using RawStudio.