The trigger chart

The recap starts here. The entry came off a 1 minute break of structure, meaning a 1 minute close past the last small swing point.

Where the sequence was read

The sweep and the structure were read on the 15 minute chart.

The 15 minute is where the London high was taken and where the fall away from it was visible. The 1 minute was opened afterwards, to find a price inside a move that had already been confirmed.

The 15 minute produced the setup. The 1 minute produced the price.

What a small trigger buys

A smaller chart gives a nearer entry, so the stop sits closer, so the same money buys a larger position.