As an example of dynamic composition, I will take a look at a page from The Witcher: House of Glass illustrated by Joe Querio.
This page goes through the beginning of an action sequence, to the conclusion of the action on the final panel.
Diagonally tilting horizon lines add to the tension, each image has an unbalanced feeling because the horizon line is tilting, adding a sense of anxiety to each image.
Close-cropping gives the audience a brief and incomplete view of the action, figures are bursting in and out of frame describing the frantic nature of the action.
Sharp diagonal lines convey movement, particularly the speed of the movements occurring, the jagged form of these lines inform areas of great displacement, as if the movement is tearing through the frame.
Upon the conclusion of the action, the horizon line is straight and horizontal, there are marks in the vertical at 90°, these devices bring order and stability into the image, juxtaposing the previous frames' diagonal marks.
The lines are smooth and rounded, encouraging a calm and relaxed mood, a respite after the prior action sequence.

Here's a collection of hard & soft enamel pins that were strewn about in various drawers and cupboards throughout my house. There are a few examples of different line colours, a brass/ gold colour, silver, and black. Some of these pins have only one colour painted on them, leaning on the line work to help the design work.

The importance of silhouette clarity is being made more and more clear to me as I view a wider range of enamel pins, given the small size of these pins, intricate details will inevitably be lost to the audience at any reasonable distance. Bold colours and recognisable shapes seem to be the way to go.

In my research into enamel pins, there are very few examples of hard edges. Even when they are present in the design, the outline die-cast of the pin is often rounded out around such elements so there are no hard points.

All the lines within an enamel pin have a rounded edge on them, so in my designs within illustrator I altered the stroke properties so that all my lines would have rounded ends and corners to match the style.