Assuming that these are different bears, the first is a young bear about 100 to 125#. The second, night time shot appears to be a larger bear. Possibly over two hundred pounds. Hard to tell from that shot. The third shot, if it is not the first bear again, would likely go around 150-175 #. I base this on the seven bears that our hunters took this week.
Let me start off by saying that I am a scaredy cat.
For someone that spent 3 years in 82nd Airborne jumping out of all manner of military aircraft, my friends find this ludicrous - but... it is what it is!
Climbing stand? Yep, still scared - put me up 15' and that is about it.
Ladder stands? I am better in these - but still cautious.
Chain on stands? Used to love them, now they terrify me.
I was once ridiculed for putting chain on stands waaaay too high - some of my friends...