My 28mm collections are just about as divergent as you can get, Dark Age Arthurians and Vietnam War era US and VC. The Arthurians started out as a “something to break up another project” type painting session, but got caught up in a club organised campaign and expanded rapidly, while the Vietnam figures were born out of an interest in the conflict, and the similarities to modern tactics that I’m familiar with.
Here’s a few pictures of Gripping Beast Arthurian & Dark Age figures that I’ve painted.
Here’s some pictures of Vietnam games in progress. I’m using the FNG rules from Two Hour Wargames written by my online buddy Darby. The rules are very good, but do take some getting your head around. I’m hoping that the v2 rules he’s working on will be a little clearer and easier for new players to understand.