Sugi ban advice

[Dauph]

My first attempt at a sugi ban box. I first tried burning boards, but they warped/cupped so much they were unusable. This time I made the box, dry fitted it, put a lump of concrete on top of it and burned the sides and left it to cool in the hope it would stay straight. It pretty much worked but, it had "unplanned side effects" on the joinery (I can make better boxes, honest!) After rubbing it down, the box joints are now proud. This is ok (ish) as the whole box has a very textured feel. I would describe the overall effect as "ahem" Rustic!
I would like to improve it though.
I'm using a plumbers type blowtorch for the burning.
Any advice, suggestions tips?

 

[duke]

I like it, what type of wood did you use for the box?
You must have really brushed the charred wood and applied stain?

 

[TRITON]

At least you have a very nice and striking box out of this early experiment.

 

[Fergie 307]

I would be very pleased with that. Love the colour.

 

[Dauph]

I like it, what type of wood did you use for the box?
You must have really brushed the charred wood and applied stain?

Its just old, scavenged Pine. The stain is shellac mixed with leather dye