I can't really say much in a negative or positive way to your pics and fun as this was the kind of shit I did when I was a kid too, thought nothing of doing 25+ mile wheeeeeeeelies.
I had a buddy that thought his ride was a motorized unicycle too, kind of like you, wore the same gear kinda like you too, went out for some fun one day, he was 6 foot tall till he crashed, (Ironically hit one of those concrete ceter sections)now after a bunch of surgeries he is a 5' 8" cripple can't even ride anymore, thus proving a T shirt adds no protection at all brother.
Wierd thing about showing off on bikes, you rarely do it when there is NO camera or auduience, so what is it about a crowd or camera that turns a good rider into a jackass

I used to be the biggest asshole on a bike when I was 17 always doing some dumb shit for fun, then I grew up a bit
Cool pics mate Fun is fun at any age, but wear a jacket at least believe me it's worth it.