I need someone's help! Which screws go where?!

Basically, I purchased 2 new replacement parts; the power button/proximity sensor cable and the volume button/vibrate replacement parts. I followed the tutorials and stripped my phone down as they said how to do so, I have now replaced the parts and put them in place, however I have lost a few screws along the way, and I don't know which ones.

So I decided to buy a replacement set of screws, thinking that they would all come separately and with the same types of screw together, however they all just came in a little bag all mixed up and I have no idea which ones are which mm! I just need someone to tell me/show me/describe to me the different types of screws there are, and even more importantly WHERE THEY GO!!!

I have looked at similar questions however did not find a great answer, I am quite capable of putting the phone back together myself and fixing it, however I have no idea which screws go where, any help would be greatly appreciated.

Thank you