So yeah, like Obazu said. Proportions.
Other than that it looks great man.
This mod is bloody amazing im working on parkour atm might take a few more days but ill do the best i can
Visual part:
Agreed with Hypersant and Obazu, it looks decent and the house is good
I don't agree with your choice of colors though. The house and fence (90% of the mod) are grey/slightly yellow, the type of color you would see on a construction site, not in a fancy neighborhood. It wouldn't be a problem if there was a base object in a vibrant grassy color to counter the boring look but there isn't. As stated below this is part of the problem of you not handling the the object limit(I haven't checked if you reached it in this mod but I assume you did and that's good) very well. One single object could change the look and feel of the mod. Instead you put your spare stuff on that ladder and the extremely elaborate windows. You easily could have fitted another house in the mod which would have been a lot better since it seems to be too short to parkour on.
*Edit*
Like I think I mentioned in that PM from some time ago, color variation(slightly altering the rgb values for each object) can really spice up a mod. Especially geometrical ones like this.
Gameplay part:
I haven't tried it myself but it looks very empty for a parkour mod. It seems you spend far too many objects on small and fairly irrelevant stuff such as windows and the ladder which really bugs me because of its placement and the fact that no one will ever attempt to use it because there's nothing on the roof. Another mistake new modmakers make really often is make the env objects oversized. Just from looking at the screenshots I can tell that almost everything is at least 50% larger than it would be IRL. This also contributes to the mod looking empty and being boring to play.
Well here ya go tell me which one you like better so i can continue off of it.
Pics
Good home examples
Lets get real here, how about you stop being a salty cunt every time I point out your mistakes and suggest changes. I and everyone else who actually spends time writing out proper feedback expect changes and improvement. .