Following Floor Plans

I've only recently started trying to plan out and build houses and I find floor plans very helpful, especially if I'm trying to achieve a certain style or look. I can't work off just a floor plan with no exterior, though; and I like to see photos of the interior (or mockups) to see how the decorating might look and how the flow goes from room to room. Also sometimes I like to see how close I can come to recreating whatever house it is. So I'm really doing more copying than creating at the moment, but it's also a learning experience that I can use if I get more comfortable with designing my own houses. Right now my "design" specialty is a rectangle chopped up into rooms. :D

I don't always use the rooms one to one - for instance a plan might show a huge walk in closet where I'd rather put a half-bath, or vice versa; or there's some kind of thing I just don't see the need for (like a "mechanical room.") But my houses are definitely getting better by using them.

The information about scale here is really helpful, thank you.