Yes, most of your first picture are the early Essex ranges (ex Mikes Models sculpts) so no catalogue pictures of them. The ECW/30YW cavalry are mainly later (current I think) Essex but there are one or two Matchlock ECW cavalry also.
Then you have a few Essex (current) Libyans, some (not Essex) Sherdan or Sea People.....(crappy sculpts), some Ottoman Janissaries, Early Stradiots and Cossack/Bulgar/Polish? and some Ancient British/Gaulish types.