Welcome to OpenStreetMap and thanks for adding this.

You asked for a review of your edit and it's fine, so you can safely ignore the suggestions below.

It might be better to map it as highway=footway rather than highway=path, as that is treated as access for foot only.

If the loop has been surfaced with gravel, rather than gravel exposed by it being eroded as a desire line, informal=yes may not apply.

There are links to the documentation below.
https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access_restrictions#United_Kingdom
https://wiki.openstreetmap.org/wiki/Tag:informal%3Dyes