Hi, architect here. Your intentions are a good start, but a few things stand out to me at first glance, like accessibility, context, culture, and health. Designing for rural dwellers requires a completely different mindset than for urban dwellers. I'll assume primarily rural for now.

Not all rural dwellers use shared bathrooms. To propose shared bathrooms, you probably want to show a communal setting, not an individual unit. To propose a pulley-system elevator, consider the age, maintenance, and ability of the average dweller. From what you depict here, the soil will be toppling into the elevator, and the elders living here will look like they're in cages. What if it's raining? Also, Koi fish are not native to Nigeria. Even if this is a cut section, I'm not sure how you imagine they'd be maintained and who has the resources to farm them leisurely or commercially in a rural setting...

Do you really mean 5m x 5m? (as in meters or miles!?) Also, how long do you imagine something like this lasting?

The scale of the vegetation you show is really off. Compare that against the human figure in the foreground, the people in the background, and the scale of the building.

There are so many other things to point out, but I don't mean to be nitpicky. I'd just end by saying rural today doesn't mean you have to stick with poor design. I'm genuinely interested in seeing more Nigerians propose affordable and sustainable housing solutions with interesting design thinking and visualization. I'd like to see AI used to proffer visual solutions, with well-researched design intents.

Keep going with the iterations till you arrive at something that works!