I’m far from being an expert on AI image generation myself, lol. I used Tensor in the past, and now I use MidJourney (which is paid).

My gens used to look pretty bland in the beginning, too. What really helped me was getting advice from others and learning which keywords to use when prompting.

Since both MidJourney and Tensor have open communities, I would often look at images I liked and check what prompts people used to generate them. That helped me understand how to achieve certain styles and results.

There should also be some helpful guides on AI-related subreddits about prompting!

But in general, my advice would be to find a platform you like and then look up resources on how to get better results with it. That’s pretty much how I learned!