*completely forgot to post something on Sunday*
Anyhow, here are some examples of 32 x 32 tiles I've done so far. Lately I've been trying to make tiles with a bit more texture to them. Before now, some of my tiles lacked texture, so they came off as a bit too metallic. As an example, this was a tileset from Crimson Brave.
As you can see, some of those stone blocks may as well be chunks of steel, given their color.