You can start by discarding these triplicates containing unsightly lens flares. These images can't be salvaged. Unless you want to stick them on your wall.
Lens flare is a common technical mistake among amateurs who point their camera at the sun. A good way to ruin your camera's sensitive light sensor, not to mention your eyes.
Best practice while you're learning is to keep sun directly overhead or slightly behind your shoulder. You'll get better pictures that way.
If you're serious about learning photography, consider taking some structured courses online or at your community college. Join a local photography club and practice, practice, practice.
Snapshots are OK for sharing with friends & family on social media. But that's not what Stock customers come here for. Adobe's customers are paying for highest visual and technical quality to use in commercial projects like billboard & magazine ads, TV commercials, movies, merchandise like T-shirts, calendars, tote bags, etc...
To be a successful Stock contributor, think about what the customer will buy. Have a look at what other Stock Contributors are doing in your keyword category. Is your work as good or better than what's represented? As a customer, would you buy it? What would you use it for? These are important questions to ask yourself BEFORE submitting to Adobe Stock.
like big issues? critical issues? I dont see them. maybe they are not perfectly perfect, but I like them, I would use them. Dont you think they are beautiful anyway?
besides that what previous users wrote it also could be if you did not give also a Model release alongside with the photos that this also could be an issue.
Also before you submit, please review the submission guidelines carefully and compare your work with other Stock inventory.
if you read the guidelines and follow those it should be no problem to get more representable Photos. Always have in mind that Stock Photography is not the same as Landscape or Portrait. Many users want to use those photos for commercial use so it has to be of good quality. Its more about how those Photos can be used for Advertisements, Posters, Flyers, etc. If you have such in mind it should be going better over time. Hope that helps.
Well, the first thing is - Adobe TOLD you why they rejected the images. Messages like "Quality problems" "technical issues", "IP violation", "artefacts" and many more. So please, for each image, share the exact reason that they gave. Because if we guess, we could waste your time by guessing wrong.