Yep, SCP is the biggest influence of this game, although we've made some workarounds to accomodate the engine's capabilities and available resources.
About the Samples, actually there are many kind of them but we just stick with several Samples, with Sample01, Sample02 and Sample03 take the prominent appearance in this entry. If you walk your way towards Generator room, you'll meet another Sample which has different form and interactions. Something along the lines, yes.
After all, thanks for sharing your thoughts about this game.