Dear Kashif
True that its difficult to work with this stuff, results are good for first timer......... the dashboard should have been first repaired with some kind of filler material then sanded for edges, then rexine should have been pasted. Plus the stuff should have been stretched at the time of pasting.
I did this type of job first time back in 2000 with my Suzuki 800 (FX with black interior)........
Regards