Retro Anime Space Adventure Poster

Create a deep-space sci-fi adventure poster in the style of 1990s retro anime. The background features a shimmering blue nebula, with a massive Earth-like planet in the upper left corner. Silhouettes of large, bluish-green alien creatures or spaceships are faintly visible in the background, and a futuristic city with antenna towers and domes is visible on the bottom horizon. In the foreground, two adventurous children stand on a red rocky cliff: the girl is dressed in…{argument name="girl outfit" default="A red cropped T-shirt, black trousers, and pink sneakers, with dark wavy pigtails."} He was holding a yellow banana-shaped ray gun; the boy was wearing {argument name="boy outfit" default="White shirt, brown shorts, white socks, paired with oversized white sneakers"} A hand is raised towards a glowing orange light source. Two adorable mascot companions are added to the right; there must be two: one is a brown bear-like mascot wearing a red shirt and blue scarf, and the other is a smaller, grayish-brown animal mascot. The sky is filled with 24 small, triangular, cheese-shaped rocket ships, including three larger cheese rockets on the left with blue winglets and orange thruster flames, and the remaining 21 smaller cheese rockets extending into the distance. The use of dramatic hand-drawn cel animation colors, high contrast, crisp ink lines, and cosmic blue and orange highlights creates a retro VHS-era adventure composition and movie poster feel. A large, centered vertical rectangular mask is placed in front of the background, partially obscuring the huge blue outline and the boy; the mask reveals {argument name="overlay left color" default="Cyan"} arrive{argument name="overlay right color" default="dark gray-purple"} The smooth, soft gradient, with no text on the rectangle.