You look quite pretty!
If you really want some color tips, I do have some suggestions. I don't want it to sound like I'm being negative though because that's not my intention. I have a very good eye for color. Just ask Hypatia. I think the grey sweater and teal shirt look lovely on you. The grey looks good with your eyes. I don't think the turquoise hair band quite goes though. The colors don't really match, but the most important factor is the color contrast. It's too bright for the rest of the outfit. Color tones need to match just as much as shades do. It also depends on the season of the year. Depending on where you live, bright colors can be too striking when it's cold and grey out.
I still think a nice pair of small dangle earrings would finish off your look. It gives the eye something else to be drawn to. I think you did a great job with the makeup. Did you have any lip gloss on before you ate? If not, a bit of that would look nice.
You really do look great!
