After taking some time (like alot) I finally managed to calm down and summarize my thoughts of the S5 finale.
I am actually really happy that this finale ending in a good end. Unlike the previous seasons, there's actually some kind of hope in there as they look forward for a new life on a new planet.
Octavia finally becoming the original badass that I loved? Hell yes. Seeing Madi going full commander was really awesome. Madi finally gets to become what she wants and everyone unites together!
And nobody died! (Except McCreary but nobody gives a fuck about him)
Regarding Bellarke, I'm actually already happy how it ended (for now, I still need it canon bitches). Clarke leaning on Bellamy's shoulder had made my heart melt.
And finally: about Monty and Harper. I loved that they actually had an happy end. They were together, and they managed to built a family. I actually cried at Monty's last scene and I just...He's my second favourite character right next to Murphy. And now we are never going to see him or Harper again... I'm glad that their legacy lives one... And Jasper in a way too.
Jordon Jasper Green. I feel like a mess as soon as I heard the name. He's adorable and he actually looks like his parents. (Credits for the casting) He seems to be a interesting character to be developed on.
In general, it was a great finale. But honestly I'm a total wreck but oh well, it's just the100 finding ways to kill me.