thx for the comments guys
@ coldflame: Many thanks
i found another mistake myself lol. About the black thing i don't know either, i will leave it for now but when it shows it really is too small i will fix it
As for the curve that begin sharp and ends smooth.. well i was looking at pictures and telling myself, i have to keep it in mind and don't forget that it becomes soft... well just guess.. i forgot
lol