where can i find screenshots for app landing page?

i finished mt html template and i still need screenshots to complete it ,
i have another question i used photos from pexels.com but all photos downloaded with out licenses will it make a problem for me or not ?

For screenshots, open your template in browser and use a screengrab app (google it, there are plenty out there) to capture shots of it. I’m assuming you are only using photos for display purposes and not in the final product, so you should be okay…