i've just recently started getting v into urban decay, so sorry i'm so excited to talk about this lol
i've had the original naked palette for a long time & i always felt like it was a super necessary staple in anyone's collection, and i still do, but recently i've gotten the naked 3 palette and the rose shades are very flattering on me & i'm really quite in love with this palette, i think on my skintone (nw 15 ish) the naked 3 palette definitely looks better, if you have a store near you i'd definitely go in and swatch the shadows & see what works best with your undertones/your personal preferences about what looks good on you. and i don't know if you're getting any other palettes anytime soon but another thing to consider, the rose hues in the naked 3 are ultra flattering when paired with the electric palette (recent purchase - SO worth it, even if you're not totally comfortable with bright shadows, paired with the naked 3 it can be totally subtle and wearable but with that pop of color that keeps things interesting, plus i think the electric palette would look flattering on light, dark, warm, cool, any type of coloring. i did a neutral look with dust, limit, and buzz, then used urban & jilted blended out as a sortof gradient on the top lashline, like an eyeliner, and used chaos and freak on the bottom lashline, SO cute) if you don't plan on getting the electric palette (even tho it's so so worth it!) i would think about the colors & palette that you already have, and think about which tones would be most flattering with those colors!! hope this helps!
naked 3 & electric palette ~ try to ignore the super sloppy nails, i had just painted them & cleaned them up after taking a bunch of selfies :/