I call this wall art, coz its made on the wall. You can use any art form to fill up the walls. Here I have just made free hand drawings on color paper, cut it up and glued it on the wall. For the flower vase, I have given a raised border by sticking a 3mm paper strip all around. No paints here, only paper. Inside the petals, I have stuck thin brown colored paper strips, to enhance the looks.
If you do not want it on your walls, you can very well stick it up on a board and hang it up. Anyway you do, it looks good. I got the idea from the vinyl pictures available on net.
Hope you try this or get inspired to do better ones than this 🙂 .