When you made the baby sound, in my opinion, it took too long. It should have been shortened and then it would have been funnier. When you put the chicken sound effect, it overlapped with the baby sound. When you made the C4 sound effect that was being dropped. I found it quite weird honestly. A C4 would not make... that sound. When you tilted after you blew up the van, you kept the fire effect rolling, which made it leave the van and move on to somewhere else. When the crowd cheered, it was sudden. Try to fade it in next time. I hate a lot of sound effects following up each other because it just makes me feel that the video is too... crowded, but that is my personal opinion. The second flame when you blew up the car was not really needed. The original effect of the car exploding was enough really. The explosion made it uglier in my opinion.
All of this was based on my own opinion. I prefer that I hear someone's voice of some random sound effect. Someone's voice is more generic, more natural in my opinion. It also builds up your personality in front of the people, and a lot of people watch Youtubers to meet different personalities. My entire channel is based on funny content, and I find it hard to make sure that I am comedic through each and every video. It is definitely hard, to be funny and new in each video. I am not saying my content is the best our there because it is far from there, but everyone who watches my video tells me how great my editing is, so if you want. You can check out my videos to see how I edit them and see what people might like. In my editing, I always try to remain simple, not crowd anything and when I have any audio. I try to not crowd it. Putting sound effects over background music over the editing itself might make things too busy over your video.
Again, all of this was my opinion. I could be entirely wrong. I am not a Youtuber with a thousand subs or something so you listen to immediately, but I think that when it comes to editing. I am someone who can help you a bit with it