The landing gear looks like it is too far foreward. You could also toe the tires in a couple degrees for better tracking. Tailwheels require a differnent approach to directional control on the runway... you have to use quick rudder responces to the swirve, but don't hold the rudder too long or it will just swirve the other way... when you first add power and start to accelerate be prepared to use full rudder to correct for swirves... as it picks up speed you can reduce the rudder inputs to partial rudder. One more thing, make sure you are not using any aileron during takeoff... opposite aileron just makes them swirve harder. It would help if you gave a more detailed description of the last crash... for example did the model only swirve one way, or did it go in both directions... you said it banked to the left and ended up on its back... usually they bank to the left after swirving to the right, was that the case?

Ty