Lecture with formulas on the blackboard in front of studentsLecture with formulas on the blackboard in front of students
A stone path across the sea. castle on the mountainA stone path across the sea. Castle on the mountain
A gray block of rock on the shore, against the background of a lilac skyA gray block of rock on the shore, against the background of a lilac sky
Summer field with flowers on the background of forests, mountains and cloudsSummer field with flowers on the background of forests, mountains and clouds
The girl is sitting on the field, with flowers in her handsThe girl is sitting on the field, with flowers in her hands