Replying to My first timelapse - need some help with uploading (I think)

I just finished my first timelapse and I was wondering why it looks so bad?

Shot and edited in 1080p, Apple Prores (LT). Edited in After Effects and FCP 7 then compressed with Compressor to h.264. I'm no video expert so I might have fucked something up but I don't get why it looks so goddamn crappy. Probably has to do with vimeo, because it looks super good when I play it in VLC/Quicktime....

Everything up till the uploading was going super smooth and I was happy with how it turned out considering it's the first time I used FCP and did all the conforming and converting of codecs and all that shit.
Now I uploaded it and it looks like 360p...

What I've been up to from Tijmen Dal on Vimeo.