To avoid having wall art that is too overwhelming or monotonous, here are some tips you might consider:

1. Choose the right color:

Avoid colors that are too heavy: such as dark black, dark purple, etc. These colors may bring a sense of depression to people. On the contrary, you can choose bright and soft colors, such as light blue, off-white, light pink, etc., which can bring a relaxed and pleasant feeling.
Maintain color balance: If you already have a darker color on your walls, use a lighter color when choosing wall art to achieve visual balance.

2. Balance screen elements:

Avoid overly dense images: Images that are too complex or have too many details may create a sense of depression. Choose simple and bright pictures, such as abstract paintings or patterns with clean lines, to make the space more transparent.
Increase white space: Appropriate white space in screen design can relax the viewer's eyes and avoid an overly crowded visual experience.

3. Consider size and layout:

The Right Size: Choose the right size of artwork based on the size of your wall. Art that is too large may make the wall look too heavy, while art that is too small may make the wall look dull.
Reasonable layout: The layout of artworks should also consider the balance and harmony of the overall space. You can try symmetrical or asymmetrical layouts and adjust them according to the structure and function of the room.

4. Introduce contrast and variation:

Color Contrast: Introducing elements in wall art that contrast with the color of the wall or other furniture can break up the monotony and add vibrancy to the space.
Material contrast: Using artworks of different materials, such as metal, wood, fabric, etc., can increase the layering of the space.

5. Combine it with your personal preferences and style:

Consider personal aesthetics: The choice of wall art should match your personal aesthetics and preferences to make the space more comfortable and welcoming.
Integrate into the overall style: Wall art should be coordinated with the overall style of the room. Whether it is modern minimalist, Chinese classical or Nordic style, you should choose artwork that matches it.

To sum up, the key to avoiding wall art that is too oppressive or monotonous is to choose the right colors, balance picture elements, consider size and layout, introduce contrast and variation, and combine your choices with personal preferences and style. With careful selection and matching, you can create wall art that is both beautiful and comfortable.