I worked in toys field over 15 years, and producing toys for oversea company now,here is my suggestions:
1)Instruction is ebough,no pamohlet need,unless your toy is very complex;
2)stickers made your toy look cheap,painting is more better but also expensive;
3)No need this certificate, but you need certificate of painting, color podwer, material complied with RoHS…
4)Your company logo;
5)Original place(e.g.:Made in USA);
6)Some warning information printed on packing box;
7)Other informations which EN71 has regulated;
Help it is helpful to you.We can discuss your toy and production.I am a manufacturer.