Pick good frames (but they don't have to match)
Don't worry about keeping like with like on your gallery wall. Yes, it can look great to have all-matching frames, but it's not necessarily better. In fact, a collection of different materials can look far more interesting. ... “Mix those frames.
Can you mix frames on a gallery wall?
So if you want your gallery wall in a grid pattern or totally asymmetrical, your frames to be uniform in style, size, and color or a mix and match display, whatever you think looks good for your space, we say go for it! ... There are no real rules.
Do all picture frames need to match?
All framed art does not need to match in a collection. Mixing black and white frames can make a cool high-contrast statement.