I think it's looking good, though I'd sort of like to see you take it even further by squaring off the top of the fuselage and having the canopy edges be straight lines. That might be going too far, but it would probably satisfy the pro-lambda crowd to at least see that it's been tried, heh
Other random thoughts:
What are you going to do for the laser cannons?
I think it might look more interesting if the bottom of the cockpit didn't continue out in the same flat plane from the back of the craft. I like the bottom being relatively flat under the main body of the ship as that's the part where the landing gear emerge from, but continuing those edges forward to a point where it is clear from the under-shot that there is nothing going on just makes it look harder to maintain from an in-universe perspective and sort of low poly from a purely aesthetic standpoint.
The only other big thing I can think of is maybe making the joints look more robust at the points where the wings are supposed to articulate. They look sort of gracile right now, which makes the craft look a bit less assaultish IMO
One way to make the design seem more practical and beef it up a bit might be to have structural rings built around the weapon/engine pods, so that it looks like those wings have some support from the main body and or that the engines could be slid out from the undercarriage for maintenance without pulling off these huge wings. Anyway, just some random ideas.
