The pond center is still at x=0.98 — off the right edge. The pond is at (8,-7); the camera is at (20,-6) looking toward (-1,-2.5). The pond is far to the right of the view axis. I need to shift the camera aim so the pond comes into view — or move the camera more to the east so it looks at both from a wider angle. Actually the cleanest fix: move the camera to the SOUTH-EAST of the pond, looking NORTH-WEST, so the cabin is on the left and the pond fills the center-right. Let me try camera at (15, -14, 5) aiming at (-1, -1).

import bpy, math
from mathutils import Vector
from bpy_extras.object_utils import world_to_camera_view

cam = bpy.data.objects['Camera']
scene = bpy.context.scene

def set_cam(loc, target, lens=40):
    cam.location = Vector(loc)
    direction = Vector(target) - cam.location
    cam.rotation_euler = direction.to_track_quat('-Z', 'Y').to_euler()
    cam.data.lens = lens

def project(xyz):
    v = world_to_camera_view(scene, cam, Vector(xyz))
    return (round(v.x,3), round(v.y,3))

pts = {
 'cabin_ridge': (-4.0, 1.0, 6.2),
 'cabin_center': (-4.0, 1.0, 1.6),
 'cabin_left': (-8.0, -2.0, 2.0),
 'cabin_right': (0.0, 4.0, 2.0),
 'pond_center': (8.0, -7.0, 0.0),
 'pond_near': (8.0, -0.6, 0.0),
 'pond_far': (8.0, -13.4, 0.0),
 'dock_start': (4.6, -4.9, 0.9),
 'dock_end': (7.2, -6.2, 0.9),
 'tree_back_l': (-8.6, 5.8, 4.0),
 'tree_back_r': (2.6, 7.6, 4.0),
}

# camera SE of pond looking NW; aim between pond and cabin
set_cam((14.0, -14.0, 4.2), (-2.0, -2.0, 2.0), 42)
for k, v in pts.items():
    print(k, '->', project(v))