Hi there. Thanks for posting. Here's some constructive criticism because you requested it. I truly hope it doesn't come across as too negative. Keep making video and posting it for us here
Good light and exposure. Good location for video. Nice clean look.
At 0’36” there’s a school crest or something on the board, but you don’t allow us to fully see it. Before that there’s a piano. Get closeups of those artefacts – just like a photographer would.
At 0’53” you return to a room you started in. Get each room done well and keep moving logically through the space. It doesn’t matter in what order you shot stuff – edit it so that it’s a journey through the space that has purpose and momentum.
At 1’01” you look down a hallway, then don’t go down it. That makes no sense to me in terms of visual storytelling.
At 1’19” that decorated cross is the most interesting thing in the room aside from the piano, and you seem to look past it. I would like a full look from its base to its top.
Jump cut at 1’29” is weird. Where are we all of a sudden? After all this walking, it’s odd to see you teleport.
1’58”-2’02” cut out that non-shot of the roof. If you liked what you were saying in the audio, then find another shot to put over that audio.
2’12” “in the video here . . . [goes dead]”. If you’re using conversational audio, don’t cut it in the middle of a sentence. We are listening.
2’51” again I don’t know how we got here. Cool space! You could do more with that daylight beaming in, and slower on the roof texture.
3’42” those destroyed floors feel dangerous. Zoom in on them and show us what lies below if you can while keeping yourself safe.
From 3’50” there’s a feeling of indecision, looking around without purpose then a cut. Best remove all that.
4’08” now we’re back in the gym. Edit this with the earlier gym sequence so we get the two views alongside one another. This section has light problems – it’s pretty dark and gloomy and lacking in detail.
4’22” that cut is brutal. Crossfade your audio and video a little.
By the end all that I’m noticing is that sci-fi sound of your zoom. I find it distracting and a buzzkill for your audio throughout. Your ending shot is pretty aimless, showing us the same scene on a couple of rotates.