Stylized NATO Star Sculpture -Military Art 3D model

I developed 3 variants of textures:1 - the original texture is brown2 - metallic 3- chipped blue paintall PBR 4k textures,
ps//*to reduce the file size - it will be enough to convert the texture in 1k to JPEG format - but the store requires me to upload 4k, png format

HISTORY:NATO’s forecourt sculpture, affectionately known as the “NATO star”, was a unique and recognisable feature of the Alliance’s first headquarters in Belgium.
Following a suggestion made by the Greek representative of the Group, Belgian architect Raymond Huyberechts designed a motif inspired by the NATO logo: a stylised “rose des vents” cut by two circles representing the old and new continent. It would be made of a factory-oxidised steel whose red-brown tint would not be affected by atmospheric agents.