Well, it's looking quite good to me... not that I know what I'm talking about.
Anyway, curiosity forces me to ask... did you got a tablet or is this mouse drawn?
About the smileys... you should see a [more] button at far end of the tool bar, click it.
In general, they're "
{ : )", "
{ ; )", "
{ : (", "
{ : P" and "
{ : O" with spaces removed.
For different fox colors, replace "
{" with "
[", "
]" or "
|".