This indecision's bugging me

Tuesday Challenge #22
The challenge this week is to go through your archive and pick out your best picture so far.

Aaarrrrggghhhh! Define 'best picture'! Some of them required spot-on timing but could be reproduced (and haven't transferred well to digital) whereas others are precious memories, and irreplaceable.

This one is moody:



This one makes me laugh:



This one reminds me of a very happy day:



Poohsticks: innocent childhood pleasures:



The timing needed to catch the flame coming from the barrel of the cannon wasn't as easy as you might think:



An iconic image from a particular place:



And finally this one for the shapes and colours.