These are the formal elements to look for in image.
line, shape,form,Texture, Pattern,colour,space
For lines you can look for Rail way lines,public path,hand rail, to a fences.
looking for shapes like shadow of a person or a objects that have unique shapes.
form is referring to light and dark like on people’s face’s and other objects.
For example you can find texture on trees,wall or people faces.
You can finded patterns all around you like on buildings,the clouds ect.
Colours are all around us from the sky to the ground.
Clear open spaces,field, street,and the sky.
This is a sample image of some elements.