Предложите цвета краски для ограждающей стены фермы

Background:
This is an under construction farm. At the moment there are no buildings or plants, but ultimately it will include a Farmhouse, plants, farm animals.
We are building a concrete block wall around the plot boundaries, and this project is for you to assist us pick the ideal colors to paint this wall.
The wall, as you can see in the attached drawings and photos, consists of panels and columns. Columns are a bit shorter, and the panels have a horizontal recessed line located at the lower third. All the dimensions can be found in the attached AutoCAD file.
The selection of color isn't open. You need to stick with the attached catalog. This is a smooth Synthetic Enamel paint. So ignore the different textures you see in the AutoCAD file. This will have only one smooth texture throughout. You can decide to use one paint color for the entire wall, you can alternate panel colors, and you can select different colors for the different elements:
1- Column
2- Panel - Above Line
3- Panel below Line
4- Panel line
The Gate is not fabricated yet, the width is 5 meters, the heights is 2.6 meters. Made of steel or Aluminum and the design will be arched, like the samples attached. Proposing its color is also part of this project.
Please note this is a long wall. Dimensions are 97m x 169m x 65m x 175m. Put this in mind while selecting colors. This will affect the way the whole road looks like.

Avoid:
Cladding: We will not be using anything except paint.
Textures: This is going to be a smooth finish texture wall.
Fixtures: There will be no lights on the wall or on the top of the columns.

Expectations:
Color options, with clear reference to the codes of the attached catalog.
Perspectives and elevations showing the proposed color scenarios including the walls and gate.

The overall feel and theme need to have a country-side vacation home/getaway feeling.

Our thoughts:
We definitely need your opinions, you are the experts. But if we had to choose ourselves without your help, we would have picked a plain single color for the entire wall at one of the following colors:
- 345 Lemon - Throughout the wall to give a Mexican ranch style, and have it complemented with a vibrant colored gate (green or purple or red for example)
- 721 Top Topas - Also gives a similar Mexican Ranch Style.
- 350 Caterpillar - A color that is close to the natural environment of the area that fits in.
But those are only suggestions, we encourage you to be creative.