OK, as a newb I was hesitant to comment on this thread...
but having been in this profession for 20 years I can't help but LOL
sorry... thats the most constructive criticism I have.
The first few comments should've said it all to you... I think your work is right on par with half my customers who ask what software I use to design, and then glow at my response saying 'Oh I have that program!' as if handing them a pencil would make it any easier for them to draw the mona lisa... Surely they know how to use a pencil right? So they must be able to draw the mona lisa!
If you're 25 years old, and those designs are 10-15 years old, then kudos to you. if not, then you already got the idea from the 4 pages of posts in this thread.