We described how culebra intuitive UI could help you create the automation script even if you don't know anything about programing or python.
However, for simpler cases or when you just want to take one screenshot and an automation script is not worth the effort, dump, another tool in AndroidViewClient's toolbox can be used.
Simply, to take a screenshot and add device art, shadow and glare:
$ dump -f /path/to/image -ZBA auto
or, with the long option which are easier to remember
$ dump --save-screenshot=/path/to/file \
Now taking advantage of this opportunity. I would like to introduce some new device art support added in the latest version, like this Samsung Galaxy S4 (this screenshot has been taken with the previous command)