Follow the code below to reproduce:

from bob.extension.config import load
mtcnn = load(['mtcnn'], entry_point_group='bob.bio.annotator', attribute_name='annotator')
dlib = load(['dlib'], entry_point_group='bob.bio.annotator', attribute_name='annotator')
flandmark = load(['flandmark'], entry_point_group='bob.bio.annotator', attribute_name='annotator')
facedetect = load(['facedetect-eye-estimate'], entry_point_group='bob.bio.annotator', attribute_name='annotator')
mtcnn(img)
{'reye': (40, 55),
 'leye': (42, 110),
 'nose': (75, 81),
 'mouthleft': (102, 58),
 'mouthright': (105, 101),
 'topleft': (0, 27),
 'bottomright': (154, 135)}
dlib(img)
{'leye': (43, 55),
 'reye': (45, 108),
 'nose': (84, 80),
 'mouthleft': (99, 67),
 'mouthright': (111, 93),
 'topleft': (7, 28),
 'bottomright': (134, 135)}
flandmark(img)
{'topleft': (11, 33),
 'bottomright': (127, 130),
 'quality': 42.30449038680964,
 'reye': (43.1875, 58.125),
 'leye': (44.75, 100.125)}
facedetect(img)
{'topleft': (11, 33),
 'bottomright': (127, 130),
 'quality': 42.30449038680964,
 'reye': (44.40644914327076, 57.35017931265445),
 'leye': (44.40644914327076, 105.76253508858744)}

In all our annotators x of left eye is higher than x of right eye except for dlib landmarks which are not Bob compliant.