In evaluating the designs to determine which one stands out, it can be useful to consider factors such as aesthetic appeal, user engagement, and clarity in conveying information. A striking design often balances visual elements like color schemes, typography, and alignment while being intuitive and user-friendly.

For improving the UI/UX of an Image-Gen website, consider the following suggestions:
User-Centric Navigation: Ensure that the navigation is intuitive. Use clear labels, and provide a breadcrumb trail to help users understand where they are on the site and how to easily return to previous pages or the homepage.
Responsive Design: With a diverse range of device screens being used, ensure that the UI adapts seamlessly to desktops, tablets, and mobile devices, offering a consistent user experience across all platforms.
Loading Speed Optimization: Fast load times are crucial. Optimize images, leverage browser caching, and minimize the code where possible. Slow-loading websites can lead to higher bounce rates and user frustration.
Accessibility Features: Implement accessibility standards such as alt text for images, keyboard navigation, readable fonts, and suitable color contrasts to make the website usable for people with disabilities.
Interactive Elements: Enhance user engagement with interactive elements like sliders, buttons, and tooltips that can elegantly guide users through the site.
Feedback and Support: Create channels for users to easily provide feedback, report issues, or seek assistance. Consider a chat feature or a dedicated support page with FAQs to address common user concerns.
Guided Tours or Tutorials: For first-time users, offer a guided tour or a set of tutorials to demonstrate how to use the different features of the Image-Gen tool effectively.

Enhancing these aspects can significantly improve the overall user experience of your website, making it more visually compelling and functionally efficient.