First off, you must edit out the footage after your deaths. If you are uploading a video, the center focus should be you and not them, meaning you should include only the best possible footage to keep the viewer entertained. Secondly, the music choice is a bit questionable. Dubstep is fine as a genre, but I believe a softer drum and bass or the official "jungle" music of Cultris 2 would fit the gameplay better, and is more classy. If you must choose dubstep, then try to pick less mainstream songs that are not overplayed.
Now for the gameplay critique. This is where I will say everything with caution, because I am fairly new to the game myself. You are clearly a high-tier player, but it seems you have yet to master the full flexibility of your pieces. Oftentimes you seem to be expecting a certain piece for too long and fail to adapt immediately. However, your game at 4:34 stood out from the rest before. You start off with fairly stable opening. One problem, at 4:34 you shoudlve placed the J piece two blocks to the right and made the space for the O piece that followed, but all in all it was a good opening. The next noteworthy move comes at 5:01, with the smart J and O placement. You show good adaptation here, a skill that is imperative in C2. You then make a nice I-placement at 5:04 followed by one more at 5:05. Smart moves, which helped you survive longer. But in 5:09 you have a dangerous field with many jags. You chose to place the S-piece into the L shaped hole, but notice how your next piece is a J and there is a J hole in the far left. If you had instead placed the S-piece 1 block to the left and filled in the J, you would have only the two holes in the center to worry about, which would be quickly fixed by the L and I piece that shortly followed.
All in all, you are indeed a great player, but you must learn to adapt with more flexibility and also utilize every single piece more efficiently. Thank you for the video, it was good gameplay. Just remember to edit them and try to incorporate more fitting music.