The difference between a junk journal page that looks rich and one that looks cluttered is almost never the amount of stuff. It is the order it went down in, and how much of each piece you can still see.
Work in four layers
Layer 1 - the ground. One background paper covering the whole page. Pick the quietest one you have. Anything busy here fights everything you put on top.
Layer 2 - the block. One or two large rectangles of a second paper, placed off-centre, covering maybe half the page. This is what stops the page reading as a single flat sheet. Tear one edge rather than cutting it.
Layer 3 - the pieces. Your cut-out ephemera. Three to five items, not twelve.
Layer 4 - the smalls. Tiny things that fill gaps: a stamp, a number, a torn strip of text, a piece of lace. These go last, and they go in the awkward spaces.
If a page looks unfinished, you are usually missing layer 2 - not more ephemera.
The 70 percent rule
Any piece you place should have at least 70 percent of itself visible. A label with only a corner showing is not layering, it is waste - and the eye reads it as clutter because it cannot resolve what it is.
The exception is deliberate peeking: a tag half-tucked into a pocket, or a card sticking out from behind a photo. That reads as depth because it is obviously a pocket, not an accident.
Leave a rest
Every spread needs one area with nothing on it. A quarter of the page, usually in one corner. Fill every square centimetre and the eye has nowhere to stop, and the page reads as busy no matter how good each individual piece is.
This is the hardest rule to follow and the one that changes pages the most.
Odd numbers and a triangle
Place your main pieces in odd numbers - three or five - and arrange them so they form a rough triangle rather than a line. It is an old design habit and it works: the eye travels around the page instead of straight across it.
Overlap the edges of layers, not the middles
Let each layer cross the edge of the one below rather than sitting neatly inside it. Overlapping edges is what creates the sense of depth. Concentric rectangles look like a target.
Check it from a distance
Stand back or take a photo on your phone. Problems that are invisible at 20 cm are obvious at 2 metres: a page that is all one tone, a piece that sits dead centre, a corner that is empty in the wrong way.
If you want papers that work as quiet grounds for layer 1, the free set is mostly plain aged textures for exactly that. For layer 3, the Botanical Ephemera sheets are spaced for cutting.
MORE GUIDES
What is ephemera in junk journalling?