If you have small room and you wanna make you room look bigger then you can buy canvas wall art online that looks like it goes far back. This makes it seem like there's more space.
Canvas wall painting with roads, bridges or tunnels. The lines get smaller as they go back so it looks very deep.
Ocean or sky pictures. The line between the sky and water looks like it stretches out.
Pictures with something bright like the sun or moon. The brightness makes it feel open and big.
Canvas wall art with tiny things that are far away like birds, boats, or small buildings. Things that look small and far away make space feel big.
So in short, pick wall art with depth and things going into the distance. The lines, light and tinyness tricks your eyes into thinking a room is much larger than it is! It really does work to make tight rooms feel nice and spacious.