1:1

Greenhouse on Mars

A glass dome garden on Mars.

Platform

Aspect ratio

Prompt for IG Square (1080 × 1080)

Tested on Google Flow

A glowing glass greenhouse dome full of green plants on the red surface of Mars at sunset, an astronaut walking towards it, a blue sunset sky and rocky hills. No text. Compose as square 1:1 for IG Square, with the main subject fully inside the frame and safe margin on every side.

Paste into Google Flow and pick the closest ratio in its settings. Finish exact sizes in the crop tool.

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Open in Crop Tool

Live Crop Preview

How this image crops in each format. If a crop loses the subject, generate that ratio from the prompt above.

Crop this picture exactly, at full size, in the Crop Tool

Make it with your own photo

Put yourself in this picture. Your photo goes straight to ChatGPT or Gemini; it is never uploaded to PromptRatio.

Open ChatGPT (chatgpt.com) or Gemini (gemini.google.com). Both work on a free account.
Click + and attach one clear photo of your face: facing the camera, good light, nothing covering the face.
Copy the prompt below, paste it in the same message and send.
Not quite you? Reply “Keep my face exactly as in my photo” and ask again.

Use the person in my attached photo as the main person in this image. Keep their face, skin tone, hair and age exactly the same, so they are clearly recognisable. Ignore any description of the person's looks below. A glowing glass greenhouse dome full of green plants on the red surface of Mars at sunset, an astronaut walking towards it, a blue sunset sky and rocky hills. No text. Compose as square 1:1 for IG Square, with the main subject fully inside the frame and safe margin on every side.

Use only your own photo, or one you have the person’s permission for. Do not use photos of children, celebrities or anyone who has not agreed.

About this prompt

“Greenhouse on Mars” is a free Google Flow prompt from the Space collection. It makes the picture in a space art style, with mars sunset and a hopeful, calm mood.

It is a wide 16:9 picture; our original is 1376 × 768 pixels. That shape is an exact fit for YouTube thumbnails, X posts and desktop wallpapers; LinkedIn posts and Facebook posts take it with a small crop. We made it for thumbnails.

Style: Space art
Lighting: Mars sunset
Mood: Hopeful, calm
Use case: Thumbnails

Made for:YouTube Thumbnails

Make this prompt your own

Subject: “A glowing glass greenhouse dome full of green plants on the red surface of Mars at sunset” is the part that names the subject. Put your own there and leave the other words alone to keep this look.
Light: The word “sunset” sets the light. Swap it for “earthlight” or “harsh sunlight” to change the time of day and the feel.
Colours: The prompt names green and red. Change any of those colour words and the picture follows.
Rules: The last words, “No text”, stop the tool from writing on the picture. That leaves clean space for your own title.

Same theme, another look

In other light: Rover in a Mars Dust Storm (dusty light), Astronaut at the Window (earthlight) and Probe Above Venus (hazy yellow light).

In another style: Kids Watching Meteors (night photo), Kids in a Planetarium (space photo) and Cardboard Astronaut Dream (lifestyle photo).

How to use this prompt

1Pick your platform or ratio at the top. The prompt rewrites itself for that size.
2Press Copy Prompt, open Google Flow and paste it. For this picture’s shape, pick 16:9 in its settings before you send.
3Want yourself in it? Upload a clear photo of your face with the prompt. The own-photo guide has the exact words to add.
4Generate two or three times and keep the best. For an exact YouTube size, finish it in the Crop Tool.

Questions

Is this prompt free?

Yes. Copying the prompt is free for everyone. Signed-in visitors can also download the full-size image without a watermark, 10 images a day.

Will I get exactly this image?

Close, not identical. AI tools make a new picture every time, so the style, light and mood will match while faces and small details change. Run it a few times and pick the one you like.

Does it work outside Google Flow?

It was tested on Google Flow. It also works in ChatGPT and most other image tools, though results vary from tool to tool.

Which platforms is this size good for?

It was made in 16:9 (wide), which suits YouTube, X, LinkedIn, Facebook, Desktop Wallpaper. For any other size, choose it with the buttons at the top; the prompt and the crop preview change with it.

Can I use the image for my business?

What you make belongs under the rules of the AI tool you used, so check its terms first. Read our disclaimer before using images for ads or products.