Very nice shot you have there, I'm trying to save money to buy a DSLR till then i'm very limited with my crap camera. I appreciate the help i still have so much to learn

F2.8 normally is fine to get a small depth of field. Problem is, as you showed a too big picture I find it difficult to make out what is within the sharp area and therefore is the motive. Plus for my taste the depth of field was too big, even at F2.8 (or did I just missed it?).
I blame my camera

Here is another picture.



Model : HP R818
Exposure Time : 1/700
F Number : F 2.8
ISO Speed Ratings : 100
Exposure Bias Value : 0 EV