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Terran,
you can knock a reflector out of collimation just by carrying it outside!
Other times you can take it down a bumpy road on the back seat of the car and it will still be collimated when you plonk it down.
But take heart, collimation becomes very quick and easy after a few goes at it.
It's pretty hard to tell collimation from a photo, so I can't comment on yours. Don't worry if the 2ndry mirror doesn't look exactly centred. It's not meant to be. It needs to be a fraction off centre to work correctly.
Pity you can't get someone in here to pop around and see you. Usually 10 mins in person solves problems that can take weeks to sort out in a Forum.
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