Miniature concerto for violin

Happy Autumn to all!

So... turns out, due to a miscommunication, I won't be writing a mini-bassoon concerto after all.
Instead they want me to write a miniature concerto for violin and chamber orchestra.

I've started sketching it out here; though I'm still at a very early stage.

I'm thinking three movements; though the time limit is 5 minutes total. 

No prizes for guessing which composer inspired this. (I think it's rather obvious!)

Those who guess the right answer can tell me if it's sounding too similar to the original work?

Am using the chord sequence function in MuseScore to sketch out my harmonies.

Only discovered this recently, and am finding it somewhat useful.

Wonder if anyone else has tried this out?

Apparently it works even better with Kontakt 7 and Sonuscore orchestral elements; but I haven't got round to installing those yet.