Everything in your first picture is G1 except for the pink/purple item in the top right corner, the hard plastic purple item in the centre of the picture, the purple brush with a mirror on its back and the brush immediately to its right.
The remainder of the items are from the Flashprance, Great Skates, Pony Royal, Neon Lights and Snow Angels sets.
In the second picture again everything is G1 except for the white bow in the middle of the picture, the blue comb and the blue rossette.
Everything else comes from the Pony Holiday, Get into the Groove, Tea Party (hat minus the little blue flower), Sweet Dreams, Prima Ballerinas, Clown Suit & Bathrobe, Great Skates and Snowsuit & Jumper sets.
In this picture you also have one of the baby diapers that most early release babies came with; the pink flower barrette (there were some colour variations) and lace from the Perm Shoppe
All of the below direct page links will show you the matching images.
http://www.greatponies.com/ponywear1.htmlhttp://www.greatponies.com/ponywear2.htmlhttp://www.greatponies.com/ponywear3.htmlhttp://www.greatponies.com/playsets-later.html