Free to use the photo. No need to ask for approval.
Simply attribute the photo to the author: Philip Nalangan.
But, make sure the photo attribution is visible and readable.
Licensing
Object
Under the Code of Copyright and Related Rights of 2022 (9 June 2023 archived copy of the Portuguese text, pages 19–51), which became effective on 28 May 2023, reproduction of the work depicted in this file is legally permitted without the consent of the author:
The use of works, such as, for example, works of architecture or sculpture, made to be kept permanently in public places.[2022/Article 129(2)(o)]
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue