Need 4 promotional videos

I need an afro centric video to advertise a online reality contest ( www.justsayuncle.ng). It should be similar to https://youtu.be/Isy-ZbPfQrs?t=52 . I need a set of 4 videos. Each video should be between 45 to 60 seconds long, all advertising the contest. The videos should include voiceover as well. I have attached another example ( but it does not have a voiceover ).