Okaye theres a lot of tuff here thats ok or great. BUt thers a lot of stuff you shoudl cut out since its way too long! you shoucl focus on putting the sest stuff first.
Fisrt i would ditch the fixol scene... it might be your favorite but its also one of the weakiset links in your reel.
Then the ones with live footage stuff. like the choildren and the movies. Consider dropping or atleast substantialy trimming their length.
Then the start, he first few seconds have a bit anooyingly long fades shorten the fade so poeple have time to see. Its a first impression.
then consider dorpping following clips the flaring one wich reads todas caras. AAnd the floating eyes. the hospital star stuff. then one where you fly tough the corridor, consider cutting the end off (the building on the dune). THe rain scene. Consider also taking a bit of the centrel tv stuff away like the one where you fly trough the stage. the berain scene is too llong etc etc.......
Then move the best of best to the beginning. Some of the start stuff is a bit weak.