Space Simulation Game Pixelart Prototype

I’m developing a simulation-style PC game and need an artist to give the project a visual identity. The core gameplay systems are already mapped out; what’s missing is a logo and some initial concept art that defines some characters and the environment, and some simple UI elements that let visitors to the Steam page experience the vibe. The game will be an isometric pixel art style game, with components of a space ship arranged on a grid.

What I’m after:
• A distinctive game logo that can headline pitch decks and work as a Steam capsule image. I already have a hand drawn logo that I like.
• Mock up screens for the main environment, suitable to include as screenshots on a Steam page
• Two primary characters, and the user interface HUD.
• Game assets from the concept art, split out into individual images so that I can easily include them in the game.
• Source files for all artwork and the project folder so I can continue building once this phase wraps.
• An indication of time and cost for potentially adding some simple animation to some of the game assets

Success criteria
The visual style should feel like a retro indie game, and readable at 1920 x 1080.

If you’re experienced with isometric pixel art and illustration, and can move quickly from sketches to image assets, let’s talk timelines and milestones. I'm happy to split delivery into logo, concepts, then assets so feedback is fast and focused.