What should I build in minecraft pe?

A life would be nice.

I dug to the bedrock, tnt hollowed a large area out, lit it with glowstone and made a bunch of messed up houses and sculptures and called it "wonderland".

Oh oh, build a whole world. Like different towns in different regions, with their own characteristics depending on the area. A town in the valley, a town in the desert, ect. Each town would have several houses, stores, inns, town centers, and other normal buildings a city would have. Once you have built the whole different towns, build a road and a railway to connect them all. :3 Like what the person above said, except more.

How about a medieval city? Those with a castle in the middle, preferably on a cliff with a moat with the surroundings being the middle-class civilian population like blacksmiths, barracks, inns, markets, housing, etc. This part should be surrounded by a high wall with periodic intervals of watch towers and decorative TNT cannons. In the outskirts of the city, there should be the lower class civilian population like shabby housing, stables, farms, lumber mills, windmills, watermills, an occasional inn and guard houses.

Take some reference from Whiterun. This should keep you busy for a very long time. It did for me

Build "Hobbit Holes" along the side of a mountain/hillside…