на английском языке опиши, что на этой картинке

Short answer:

There are two young people sitting outside on a sunny day. The girl on the left has long, curly, fair hair and is wearing a blue T-shirt and a dark jacket. The boy on the right is sitting in a chair and looking at her. They seem to be talking. There are trees and green grass in the background.

How to describe a similar picture:

1. Say who and where: There are two young people sitting outside.
2. Describe people from left to right: The girl on the left… The boy on the right…
3. Use the Present Continuous for actions: is sitting, is looking, are talking.
4. Add appearance and clothes: long curly hair, a blue T-shirt, a dark jacket.
5. Finish with the background: There are trees and grass in the background.