Me, I post something to listen to, I WANT opinions. If I wanted nothing but flattery, I would play it to my mother! (Rest her soul)

One way I have found of making string patches more realistic is to layer them... Take a nice semi-mushy string sound (like she has done), and take off some of the velocity sensitivity, so it doesn't vary too much as you play softer and louder (if you are using a volume pedal like she is, maybe take it off altogether), then layer a string quartet sound (just solo violin and cello, for instance if you don't have a quartet sample) and make the velocity sensitivity VERY high for that, then turn it down until it JUST pops out when you hit hard. Now, as you play smoothly, you get smooth strings, get frisky and a hair more definition comes in...

Works well with smooth strings and spiccato, too

Give it a try...

The whole purpose of criticism should really be positive... point out flaws, then figure out if they can be avoided. Don't just pretend they don't exist. Who gets better by doing that?!