its hard for me tell much on anything but white eggs at day 5, i usually wait till 10, but, if you start early and take note of the yolk mass, generally by 10, its enlarging to a larger darker mass if its developing ... its after that, that it becomes hard for me on darker shelled eggs to actually see movement or signs theyre doing ok, if they go solid dark near lockdown time thats a good sign, but basically just wait for a pip ..
.. on your eggs specifically, its too bright to see much, but i wouldnt expect to see a mass that large and stationary on a day5 egg .. now there are scenarios where an egg has 'pre-started' before you actually incubated, especially if weather is warm, so .. to avoid that i collect daily and try to keep collection time under 5 days, you can tighten it up more by putting them straight in the fridge but i think it reduces viability percentage slightly ..