Are you're a student? The assumption is purely because your username ends in "86" - possibly your year of birth. Of course, I could be way off here. 😉
If you looking for design comments, you might not get too many. Generally, this forum is for troubleshooting, tips & tricks, useful links... that sort of thing.
You will also get more response by posting pictures. You see, we are a lazy bunch and downloading, unzipping and opening a file so we can offer our ever so valuable opinions can cut into our drinking and carousing (or sleeping) time... 😉
I'll assume this is about presentation. (could be wrong)
Rendering wise, I'd use a warm sun color instead of bright green or blue. I'd use a view cone closer to 70º perhaps in this case. Or adjust the view cone to see if it improves anything. The way you play with lights could definitely change the overall 'feel' of your images. Dwight's book is worth looking at if you're seeking helpful methods using lightworks in archicad.