Sorry, I mean for the base page itself - the first byte time from when the test started until the base page started to come back (which is the measured first byte time for the test) - this is including the DNS lookup and socket connect.
For individual requests for the static content the first byte times should be substantially lower than that and should basically just be the round trip time (usually under 100ms).
That's not bad. What you want to do is compare the orange bar to the green bar. If they are exactly the same size then that's as fast as you could EVER be. Having a green bar around twice the size of the orange bar is on the better end of what I usually see.