Water Body Color Discrepancy at Ennis and Hassell Fields

[MZee1960]

I just downloaded these 2 airfields and the water color in the immediate airfield region seems off compared to that further away in the area.
I have REX Essentials for airport and water textures, also running Orbx Global Base, Vector and Open LC NA.
When I turn 'off' the photo .bgl , in both scenery packs, the water color matches that of the entire region, but get sharp ground texture lines separating the scenery from the rest of the area.
Any advice re how to minimize the water color variations would be much appreciated. Thank-you.

[MZee1960]

Must be something to do with photoscenery, as any changes I made to REX water textures will only show up in the more distant water bodies from these airfields.