I think it looks nice. Chibis are one of those styles that people really can't go too wrong on, because there's so much styles and anatomy usually isn't a concern. But your shading looks good too.
Frills can be hard, but once you understand the concept, it's really no big deal. You can try learning by seeing how a curtain hang and where the folds go.
I did a little sketching on my take of frills.
If you need any more help, feel free to ask.
Frills would usually look better if you make your edges less bubbly. The bottom of the frills should be flat.