Hi,
* no description
* incomplete schematic
* wrong connection
* no bill of materials
* missing and wrongly set junction dots
I personally think that it won't work properly at low light level...and even at high light level it can't follow with somehow good accuracy.
It at least needs some adjustment that an unexperienced user can't do without description.
Thus I assume
* an experienced member won't use this circuit
* and a non experienced member will not get satisfying results .... just wastes time and money.
*****
Here in this forum we want to assist users by providing good, complete and reliable informations.
If you want this thread to stay online you really should correct errors and add a good description.
Klaus