Welcome to the database, and thanks for sharing your collection and unique cards.
A great search tool are the 'Filters' on the page for an individual player, located below the player name and above the years. Search by "card#" or by set type "unlicensed" to help find the cards you're looking for.
"Overview | Cards | Contributors | Favorites | Filters | Forum | Gallery | Card Rankings | Collection Summary"
~~~ ~~~
The sample cards are here...
https://www.tcdb.com/ViewCard.cfm/sid/157318/cid/10160038/1990-Sports-Stars-Super-Star-Elite-Samples-(unlicensed)-NNO-Ken-Griffey,-Jr.
https://www.tcdb.com/ViewCard.cfm/sid/157318/cid/10160040/1990-Sports-Stars-Super-Star-Elite-Samples-(unlicensed)-NNO-Ken-Griffey,-Jr.
https://www.tcdb.com/ViewCard.cfm/sid/157318/cid/10160039/1990-Sports-Stars-Super-Star-Elite-Samples-(unlicensed)-NNO-Ken-Griffey,-Jr.
Here are the series4 red silver card... and the purple gold card...
https://www.tcdb.com/ViewCard.cfm/sid/118897/cid/8098606/1989-Premier-Player-Silver-Edition-Series-4-(unlicensed)-4-Ken-Griffey-Jr.
https://www.tcdb.com/ViewCard.cfm/sid/157307/cid/10159942/1989-Premier-Player-Gold-Edition-Series-5-(unlicensed)-1-Ken-Griffey-Jr.
The series2 red card could be a #nno variation that might need to be added to the existing database set. And same for the series3 card on the bottom row.
The series3 #nno blue card on the top row might need to be added to the existing database set, since it's different than the following purple card #7 in the set...
https://www.tcdb.com/ViewCard.cfm/sid/99901/cid/7065552/1989-All-American-Promo-Series-3-(unlicensed)-7-Ken-Griffey,-Jr.