I installed the interior window trim and window panes to the front windows today.
I sided the front lower half the dollhouse as well. It is a little difficult to do this with the porch roof installed but you would not want to install it over siding, so you just have to deal with a little difficulty going around the porch roof gable with your siding.
Try to get the siding angles as flush as possible to the roof but remember that you have to use spackle later, along these joints, to tidy them up.
I did not install the exterior front window trim yet. It has to be installed after siding.
These laser cut dollhouses have very precise and thinly cut trim so you have to get your siding as close to the window opening edge as possible.