I would first check if it is too wet: the reasons are that it has been only 1 week since you have it and you don't know how wet or dry it was kept before. Too wet is generally worse than dry. Containers without drainage holes keep water at the bottom for a long time. On top of that, 'soil' is covered by wet moss - another no no for succulents. It is used for decoration - but without any consideration for health of plants. Gravel would be more appropriate for plants that have originated in arid climates. OTOH, it could be dry if it wasn't watered or peat has become hydrophobic (peat is medium most often used by growers, so I am assuming that's what it is in). It would be best to take both plants out and repot into individual pots with proper drainage and into a fast draining mix. I can't ID your cactus, but other plant is Echeveria runyonii 'Topsy Turvy'. It definitely needs more light too. You can see leaves being too opened up in order to catch some more light. Try not to handle it too much by the leaves so protective coating doesn't rub off - not so easy while trying to repot or take off some offsets as you can see some marks on mine :)

Looks like an Echeveria or hybrid. It desperately needs more light. Where do you live? These don't fare well under typical indoor conditions. Those types of pots typically have a label on them. What does the label say?

Bump....’not sure what succulent it is’. Neither are we without that all important picture, my crystal ball isn’t working these days!

The smell comes from the flowers: tiny little greenish stars. I think I see a few at top left in the picture. It is normal, and will disappear once the flowers are done. From a blog: “imagine a private bathroom after someone has just used it. Before they came out of the bathroom, they washed their hands and sprayed one of those aerosol air fresheners around. Ideally it's a really old-style air freshener, something from the 80s. The flowers smell like what that room would smell like if you walked in right after this other person has just left”. ;-)