I feel like the heart shape shampoo bottle might be G3.
The Grape barrette, Dress, and register are not G2.
The Orange pick with the single flower is Dart and Dash or Secret Tale.
The 1st blue pick with the leaves/flower petals is Clever Clover or Merry Moments.
The 2nd Blue pick with the single Flower is Secret Surprise Morning Glory, or Stardust and Moondust,
The Pink picks look like Secret Surprise Sky Skimmer, or Wing Song.
The Orange berry pick has me stumped! It's the same mold as Sea Breeze and Berry Bright. Not sure though! Sorry!
They would be earlier releases as starting in 2001, all ponies came with either the "Butterfly" wing/ribbon pick or star pick. Hope this helps!
Hope this helps!