You can place acrylic paintings anywhere you might want to hang wall decor, such as above your sofa or in your bedroom. When decorating, consider a theme you might want for the space and look for art and decorations that reinforce that theme. For example, you might get a landscape acrylic painting of a sunny beach while the sun sets, pair it with some sand in a jar and seashells, and have a coastal look in your bathroom.
If you have a modern interior, look for an abstract painting with bright but soft colors such as whites and grays, sky blue, or forest green. This will give your room a pop of color but feel sleek and intentional. Some acrylic paintings might lay the paint on thick and add texture. You could pair this with a mountain scene or in an office where you have a globe and a few books of places you love to travel.