Will Mallia did a fine job on the OoTW maps. however, on part 8, all the way to the left, it shows the aliens running for the gate, which is not their normal rest state. if you don't approach them, they're standing around in a group. the only way to see this is to go upstairs first (which leads to getting killed).
likewise Rick Bruns made excellent maps of Castlevania I. however, the levels are designed to match the overworld map, and there are minor inaccuracies. The first floor of the main/grey building should be above Frankenstein, instead of next to it. Second, there's too much distance between the sewer and the courtyard, it should be slightly lower. There's also places where the stairs don't line up just right but there may be no helping that.
These are minor issues, but I'm just trying to be helpful.
