These are my natural looking short female fingernails you can find here https://legacy.curseforge.com/sims4/create-a-sim/female-short-fingernails , I have made them a default so you can use them as a manicure option in spa day. You do not require the spa day pack for this default to work, as it is a base game item. Spa day is only required if you want to do the manicure. Happy simming :) I have included images showing the before and after of the manicure as well as the selection your sim will have to make to receive the short natural nails as a manicure result.