The point of the DevForum is to give advice.
This is not low poly. It’s just only a box with a few windows and a pyramid roof.
That is not advice, it’s vilifying someone’s build, there’s plenty of other things you could say such as “The window isn’t aligned” or “The color of the build is quite plain”.
Not saying anything more than this.
I think it looks great for a somewhat old school roblox style like 2008-2012 builds, Maybe fitting for a brickbattle game 
Sorry for the drama going on in here, but your build is fine. It just need more improvements since your starting. Hope you be the best builder!
Since you don’t say that it’s your first build or not, It’s not that good at all.
The placement is all wrong.
The door is Z-fighting with the walls, the windows are sticking out, and all you use is plastic. (unless that’s part of low-poly builds)
I want you to try again, and taking all of these into consideration. Hopefully it will be better than this.
But remember, you gotta keep trying and never give up!
Try and make it have more wings. Schools generically aren’t one long house. For example, my high school has three major areas and a hallway connecting them. Schools also have an exterior too, so don’t forget details like a parking lot or a soccer field!
This is my school for reference. Click on the image to reveal the other half.
Try to align everything, stop the z-framing that is occurring, and try adding in more details than just the two bricks.
My issue with this is not that it’s a bad design as much as it is sloppy in terms of how it is put together. Keep your proportions correct. I recommend making the windows neon, changing the colors so that they work better together, and pulling the bricks and windows into the building more so it seems like they are actual windows and bricks instead of huge things that are kinda hanging off the side of a building.
OK I will take your advice…i will make the windows neon. And stop the z fighting.
Consider to keep response on topic and related to the thread. As for the OP i would consider reducing the blocky approach as it’s quite simple and simplistic depending on what approach your wanting to go for.
I’m assuming your referring to a cartoony build if so the color is a bit off, low poly builds normally strive for more vibrant brighter colors. Try including more variety of shapes and possibly some text in the front make it more natural i’ll try to follow reference images to get a overall good approach as shapes and color pallets.
For cartoony builds aim for warm, vibrant colors, add something in the background maybe some trees or a football field so on and so forth, you could get some ideas in some images to get the full detail or look at existing builds and see what kind of color scheme they have small objects could improve the overall design. Otherwise my small recommendation would be try improving certain areas
I will try to research on low poly builds more and try to make builds which are more appealing to you. I will also research on colours of cartoony builds .Any way thanks to everyone for their feedback. I will try to better myself over the coming time.
Plus @TestyLike3 it is my first build.
Looks decent yeah.
I mean, not sure how long you’ve building for, but yeah it’s a good start.
(before you read improvements, these are just my honest statements I’m sorry if I sound rude when I don’t mean to)
Improvements: First, it kind of looks like a house rather more than a school. Try to give it something that symbolizes a school. You’ve got the right idea, but I don’t think you know what a low poly school looks like.
Not much else to say but keep going, your getting there man.
How 'bout adding transparent windows and things on the inside? Also make it smaller
Oh and the door is a little huge.
Ok that makes it more reasonable to be beginner quality.
Also, remember to use the Gapfill plugin! It’s really useful for when you need to fill gaps without making a mess, and ResizeAlign also helps.
First of all, begin with changing you increments either then one stuff, take off collision and try to compare some images of lowpoly schools and other buildings.
I like it! keep up the great work! One think you could improve is color brightness and lighting, over all it needs a lot of updates. You might want to watch some videos and learn about small stuff before moving to big ones, plug-ins help a lot too! Over all just need to update the builds a lot, great work keep it up!
The thing that caught my eye the most was the windows was sticking out of the frame 
Otherwise, it was great!
Not bad starting out as a low-poly build. I do suggest raising the roof up a bit since it’s a bit low and doesn’t look like a school to me. After all, it looks good. Keep it up and you’ll improve! 
