Yes. For the critique: the transitions between the slides at the beginning felt really slow to me. But hey, that might be part of what you were trying to express.
Criticism: Try to get the end the 60's theme thing more abruptly. I know what your trying to do, and it can work, but the current transition was too smooth and slow. Possibly cut immediately a black screen for half a second then to the multi-colored screen, and slow cut the music in and out, like a scratching radio? Just an idea. Also, you really should work on the font and overall layout and design of your slide. It feels very amateur, which I know it is, but it doesn't make me want to buy something for you. Maybe chose some interesting music to play behind it and chose a better background then just a solid color. Also, find a better font, it feels like you whipped it up quickly in word. That's what the whole slide feels like. Make it more professional. Come up with an interesting slogan or tagline, keep in mind that your marketing your event, and ask yourself if you'd want to go if you saw the ad. Also, either add something for the last few seconds, or cut that out completely, the extra seconds at the end are just bad. I know you wanted to let the music finish, but you can just fade it out, find a better song, or just keep something on screen. P.S. by a more "interesting" song, I meant a better one
Agreed! very constructive criticism. Another thing was because it's a video made of stills, there isn't any action around, so it makes it very plain, and seeing the crowd, I was expecting movement. Perhaps you could use the old film effect (if you're still going for the same music at the beginning) with the 3,2,1 countdown rather than the standby. Also, it was quite a jump to the following retro electronic music. I get what you were trying to do, but it isn't working for this. As for the font, like said above, I'd definitely pick another, with better colors choices against background chosen. A combination which would make the words stand out better. You could also make them pop up from small rather than just appearing that way/ other effects like from the sides and all. But overall, I'd advise you to make a shorter video to promote the event, since it's a simple message you're trying to tell.
