No they are not similar. Or rather, they are similar in the way that creed's in general are similar: Many Creeds are "green", many (like MI and SMW) share the same house note in the base, some of the citris notes are shared among their aquas, etc. SMW smells really different, in short because of the tea and "ink" note. I would never confuse the two, not for a second. I don't think an inexperienced person would either. You should get two samples and try them side by side, you'll see right away if you haven't been slipped the wrong sample. Trust me, even my mom would tell right away. Good luck, hope you haven't been cheated.