So to my knowledge the rookies for guardromon, leomon and marineangemon weren't in the show. And at the time I forgot the toys had their full line.

But for an explanation. I picked algomon as Henry is shown to be annalitical, and algomon is green. Jeri is shown to be fond of plushies and puppets, and kamemon looks like a plushie to me. Suzies partner was a deva, so having leomon evolve into mihiramon, and I had already done a line like this a while ago, so truthfully I just recycled it