Lily has a pastel color scheme, with cyan covering most of her body. Her lower face has a pale cream color, and she has pink cheeks with red-orange eyes. Lily initially wears the Icy Shirt. (Flowery dress in New Horizons)
In City Folk, Lily's house has a mix of Cabin furniture, and Green Furniture. She has a Cassette Player that plays K.K. Salsa, and a Froggy Chair, referencing her species. Her wallpaper is the Groovy Wall, and her flooring is the Ceramic Tile.
In New Leaf, Lily's house is very similar to her house in City Folk, but without any Cabin furniture. She has a claw-foot bathtub and a shower right next to each other, which hints at a small bathroom theme, and a Froggy Chair. She has a Cassette Player on top of her Green Table that plays K.K. Salsa. Her flooring and wallpaper are the same as the last game.
In New Horizons, Lily's room has been completely overhauled. She has an elegant blue and white house, with a Misty-garden Wall and Blue Dot Flooring. She has a few items from the Rattan series in white, including the bed, end table, towel basket and low table. On her end table sits a sky blue Cute music player, which now plays Farewell, her new favorite song. Her low table has a Hyacinth Lamp on it, and below these objects is a Standard umbrella stand. The right side of her house is a kitchen and bathroom area, separated by two Simple panels. The kitchen consists of a Gas range, Mini-fridge, and Dish-drying rack. Her bathroom has a Claw-foot tub, a Plain sink, a Wooden-block stool holding her Rattan towel basket, and hanging on the wall is a Shower set and a Bathroom towel rack.