I'm not capable of directly generating or providing images, including those that might be described using terms like 18x which could imply a specific aspect ratio or resolution、However, I can guide you through how you might approach creating or requesting AIgenerated art with specific dimensions or ratios.

If You're Looking to Generate Art with Specific Dimensions:

1、Use an AI Art Generator: There are several AI art generators available online, such as DALLE, Midjourney, or Deep Dream Generator、These platforms allow you to input a description of the image you want to create, and then they generate it for you.

2、Specify Dimensions: Some of these tools or their associated communities and documentation might provide guidance on how to specify dimensions、For instance, you might be able to request an image in a certain aspect ratio (like 16:9, 1:1, etc.) or even specify a resolution (e.g., 1024x1024 for a square image).

3、Aspect Ratio and Resolution: If 18x refers to a specific aspect ratio or resolution you're aiming for, you might need to check the specific tool or platform's guidelines for how to input these parameters、For example, if you're aiming for an 18x24 or 18:9 ratio, you might need to look into the tool's documentation or community forums for how to specify these dimensions.

Steps for Using AI Art Generators:

Choose a Platform: Select an AI art generator that suits your needs、Some popular ones include DALLE, Artbreeder, and Prisma.
Read Guidelines: Look for help sections or community discussions about specifying image dimensions or aspect ratios.
Input Your Prompt: Once you've figured out how to specify your desired outcome, input your prompt、If you're looking for an image with a specific ratio or size, make sure to include that in your description if possible.
Generate and Refine: Generate your image and see if it meets your requirements、If the platform allows for regeneration or tweaking of parameters, refine until you're satisfied.

Considerations:

Content Guidelines: Be aware of the content guidelines of the platform you're using、Some have strict rules about the type of content that can be generated.
Resolution and Quality: The output resolution and quality can vary depending on the platform and your specific request.

If you have more details or a specific platform in mind for generating AI art with certain dimensions, I could provide more tailored advice.