Agreed. According to Q's post, the camera rotates, so we're probably looking at a sequence with the first shot posted 2/16 and the later shots posted today.
I looks like Feb 16 and Rot1 are back to back images as if the camera rotated left. Then the camera must have rotated right to capture Rot2 and Rot3 in sequence.
The file name of the Feb picture is this:
NSA_Traf_CAM_LONDON2847
2847 might = April 28, 2017 or 2007
Anon earlier had mentioned the blue might be for Autism Day, which is April 2.