The Skirt:
* Layering: Wear a black slip or petticoat underneath the green skirt to add a dark, mysterious element. A sheer black one will show through subtly.
* Accessories: Add black tights or fishnet stockings. Black boots (doc martens, combat boots, or even platform boots) instantly toughen the look.
* Alterations: If you're handy with a needle and thread, consider adding black lace trim to the hem or waistband of the skirt. Small black patches or safety pins could also work.
The Shirt:
* Layering: A black or dark-colored t-shirt worn underneath is a simple and effective way to add darkness. A band t-shirt would amplify the goth vibe.
* Accessories: A black choker necklace or a cross necklace (worn ironically) can add to the goth aesthetic. Spiky bracelets or rings contribute to the harder edge.
* Alterations: You could add black fabric paint or patches to the shirt, perhaps in a subtle design.
Overall Look:
* Makeup: Dark eyeliner, black lipstick, and pale foundation are essential goth makeup elements. A smoky eye would complete the look.
* Hair: A dark hairstyle, such as a messy bun, straight dark hair, or even a gothic braid, adds to the overall effect.
* Accessories (continued): Consider adding a black belt with a buckle, a studded handbag, or a dark-colored cardigan or jacket. A long, dark coat would be ideal for a colder environment.
Important Note: The degree to which you "gothify" the outfit is entirely up to you. You can subtly alter the look with a few accessories, or go for a full-on gothic transformation. The goal is to find a balance that expresses your personal style.