Not knowing the schematic you build after, I can only point you to the most obvious mistakes.
The voltage regulator (i assume) in the right side of the picture doesn't seem to have a ground reference (but who knows what lurks in the shadows).
The LDR bridge seems to be driven from the outputs of the dual op-amp/comparator used (I guess the 1.1k resistors should have been in the vertical strips where you connected the inputs to the IC).
For more answers, please provide the schematic, instead of a somewhat unreadable picture.
Write down the component values as well (we're good, but we're not oracles
In your pic, it's next to impossible to follow the circuit and there's no reason to - you want help, so start by helping yourself by posting hard facts, not soft (focused) photos.
I do wonder why there's a voltage regulator in that circuit, as there's no need for it - sloppy design I guess.