Personally I don’t think your spokesperson video will be suitable for business customers. You can check your competitors and compare it. As a customer my main concern would be the background & sound. If you get these sorted then your low pricing might give you chance.
Your greeting card videos might get you a few customers, but again, check your competitors. Personally I would hire a Santa to read my card and there are plenty of those videos. Maybe if you find a unique angle to deliver your message and sort out the background, you might make a few sales 
So as I said before, if you’re talented in video editing then focus on that. Get a better demo and give it a try.
Right now that 10 second swimming pool video doesn’t really show your skill and it’s targeted towards a very narrow audience.
I’m not trying to bring you down or anything and you gigs are better than lot of them, but you asked for an honest opinion.
It doesn’t mean you should take those down because there might be buyers who would love to buy your gigs and since you created those just yesterday you don’t have enough data to say if there is interest or not.