GTLA neighborhood illustrations — attribution and image license

Applies to:
- neighborhood-astar-b2-v4.jpg
- alerts-astar-b2-v4.webp
- the directory social card rendered at /over/opengraph-image

Source photograph:
"Aerial view of houses in Walnut Park, Los Angeles, April 2024"
by Pi.1415926535, photographed April 6, 2024.
https://commons.wikimedia.org/wiki/File:Aerial_view_of_houses_in_Walnut_Park,_Los_Angeles,_April_2024.JPG
https://commons.wikimedia.org/wiki/User:Pi.1415926535

Neighborhood source license:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
https://creativecommons.org/licenses/by-sa/4.0/
https://creativecommons.org/licenses/by-sa/4.0/legalcode.en

Aircraft reference photograph:
AS350 B2 LN-OLG, photographed by Alan Wilson.
https://www.flickr.com/photos/ajw1970/49323186781/
Aircraft reference license:
Creative Commons Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0)
https://creativecommons.org/licenses/by-sa/2.0/
https://creativecommons.org/licenses/by-sa/2.0/legalcode.en

Changes by GTLA: AI styling and orange-and-charcoal color treatment; added
AS350 B2-inspired helicopters based on Alan Wilson's aircraft reference and
an illustrative phone; rearranged scenes; cropping, resizing
and compression. The rendered directory card adds the GTLA wordmark and text.
The images are illustrations, not evidence of current helicopter activity or
screenshots of device controls. Aircraft mechanics are simplified.
No endorsement by either photographer is implied.

Both image derivatives, including the rendered directory social card, and
GTLA's contributions to those images are available under CC BY-SA 4.0.
https://creativecommons.org/licenses/by-sa/4.0/
https://creativecommons.org/licenses/by-sa/4.0/legalcode.en
The aircraft reference's CC BY-SA 2.0 section 4(b) permits derivatives under
a later version with the same license elements; these adaptations use 4.0.
Reuse requires appropriate credit, the source and license links, a notice of
changes, and the same or a compatible license for further adaptations, as
provided by the linked legal code. The images are provided as-is without
warranties, subject to the license's disclaimer.

This notice applies only to the identified images. It does not relicense
unrelated website code, data, aircraft models or other images. Trademark
rights are not granted.

Human-readable credit: https://gtla.live/attribution#neighborhood-artwork

For a standalone image download or social post, keep this notice with the file
and include the human-readable credit link in the accompanying post or caption.
The /over landing page and alerts setup screen link to the same complete notice.