don't have any pics at my hands right now might add later~
some tips I'd suggest:
1. Sizing
most usual mistake i see is people making their houses way too big so everything they put in the house or out the house looks very dwarfed
easiest way around this is using doors windows and furnitures for guidance while building your overall shape of the house
2. Examples
it also helps to take existing houses from google or such and try to recreate them if you feel like you end up with same awkward box
3. Roofing.
something that can pretty much save or ruin your house from the outsides so it's important to think how you are going to roof the house before you have done whole house and realize no roofing works
(guilty and charged)
4. Decorate
house is lit from inside and good size but looks boxy outside?
add some popouts and have fun with the pillars and friezes and balconies and roof deco and whatever
the decoration is there to be used
5. Landscape (i suck at this step but I'll try)
add some trees, bushes, walkways, gardening spots etc.
(rip)
6. Take the surroundings in account
optional but I feel houses look better when they fit the surroundings like log cabin in desert looks pretty off you know
and also if there is any non deletable houses try to match their build style could help
7. realize none of this helped and go watch youtubers build things