Given the amount of time you spent making these, I suppose you made approximately 1 design every 2 months. Shouldn't have really taken you that long.
Anyhow, at least you put effort into these, I kinda like number 4.
Na man, you should try a little harder on your portfolio, it could look much better. As for showcasing your work I'd recommend successfully finishing more and better projects that could be a good show off.
If you're old enough to buy your own ticket, then go where you want to go. don't think you have to depend on your mom and her boyfriend to do what you want.