1. Doors above lift - there I don't understand why you made those doors so close to each other.
Your old version has more floors than the new one, but the same height, so unless your lift skips floors, there should be more doors. These floors are 20px high, which is standard in pak192.comic, only the ground floor is twice as high. This is because I can see the ground floor being one giant hall with big machinery and stuff, but it does not make any sense to stack those above each other when clearly there is enough floor to expand on the ground. Since this factory outputs something that's sold in the shopping center, I assume that it does not only change raw fiber of sheeps and flax to cloth, but clothes as well. Which means the top floors could be for all the sewers, who need big amount of cloth to work (hence the elevator) but no high ceiling.
2. Windows on front building could stay without that frame around. But may it be.
I assume the front building to be offices, meeting rooms and stuff like that. Office buildings are not as practical as industrial buildings, they are supposed to look good, too. As such, some kind of frame seemed appropriate.
And I have prepared also historical version of the second factory. Missing of great windows on rear building is intended (but at this time I don't know why)
I know, your old version is/was in pak192c as well. But when we decided that they did not fit the style and had to go, Alex drew a completely new old factory. It would be very, very odd to have three factories which all do the same, while other factories are old, 'ugly' and don't even have winter graphics.