Midjourney parameter: Aspect Ratio

Aspect ratio is a way to describe how wide and tall an image is. It's shown as two numbers, like 1:1 or 4:3, that tell you how the width compares to the height. For example, a 4:3 aspect ratio means the width is 4 parts, and the height is 3 parts. If an image is square, where the width and height are the same, it has a 1:1 aspect ratio. Choosing an aspect ratio helps you decide if your image will be wide (landscape) or tall (portrait). Use a bigger first number for a wide image and a bigger second number for a tall image. Important: Aspect ratio isn't the same as image dimensions. The final size of your Midjourney images will also depend on the model version and Upscaler you're using.