Interior painting or real painting: what’s the difference?

What makes a painted canvas a work of art? Is there a difference between an interior painting and a painting by contemporary artists?

Painting by contemporary artists
In our opinion, there is definitely a difference. By contemporary painting we mean the work of artists who have:

Own style.
The artist’s work is recognizable. Having seen a few paintings, you are likely to recognize other works of this master in the future.

Their own technique.
Artists have their own secrets as well as sources of inspiration in both everyday things and world painting. They use individual techniques that are honed over the years and are the result of their individual search.

A unique vision or subject matter.
Here we are talking about not copying anyone else’s work exactly.