Fantastic WIP Diaabo - though I have to admit I wouldn't say it's quite 99% complete.
My major gripe is the fact that you're using these
to attach the wings. Personally I don't think this piece very much suits a TIE at all. Look at the connection on the actual studio model
. (I know I used the same piece on my own TIE Interceptor, but that was only because I was low on parts.) A better alternative would be to simply attach some 2x2 round bricks to the cockpit with SNOT (running a technic axle through for stability, of course) and attaching plates directly to those. Of course, using this, you would have to rework the connection between the arms and the ball cockpit - I can't help but think these
are too thick for the TIE Interceptor - after all, remember that the Interceptor's design resembles the original TIE more closely than any of its film variants.
Which reminds me - the method for mounting the angled panels shouldn't be limited to these
. I suggest doing something like this
. The panels are connected via this piece
. This would also reduce the HUGE gaps in the wings.
There should be guns on the wings - and the raised segments on either side of the guns are oriented in the other direction
To avoid a blocky cockpit, dump the TIE windshield piece (there's too much transparency anyway - unless you plan to paint the piece) and use this piece
as the windshield, and SNOT it around that. Something similar to this technique
A TIE Interceptor, like the TIE fighter, has only two ion engines, as well as a hexagonal rear viewport. (It is not, as LEGO appears to think, the main booster.)
I hope that my suggestions and all the reference pictures I linked to were helpful. Keep at it Diaabo and your TIE interceptor could be the best one on these forums.