Don't knock yourself, Once you have fitted the "ABER" Photo-Etch Engine cover grills it will be perfect,
Oh didn't I mention the Grills

Joking,
Fit the grills by all means but not everyone does,
Just a rub along the worked area with a little bit of fine emery cloth and it will be great.
I have never understood why Heng Long persist with fitting the VERY wrong Headlights,
Although Headlights on Tiger1 Tanks is worth a couple of pages by themselves, 2 above the mantlet one each side or if you are building "131" No headlights at all or 1 in the centre between the driver and the Hull MG, You take your choice
Like Herman said there is no end to the things that can be done to a Tiger 1,
I do hope you obtain a decent set of decals because the only place to stick the Heng Long ones is in the bin.