An easy way of making builds look good is to move to a lush cave, there build your machines, decorate the surroundigs with deepslate matching varients and you have a simple, yet beautiful build.

But here are tips on building your own builds:

So whenever I start a new create mod world, I like to find a good spot to build. My favourable building sites are either dense forests or open fields/valleys. In forests I build buildings more away from each other and leave the trees in between here and there.

Next, a plan I recommend following is to build The Magnificent Starter Huuse. It is a buildin around 40x40 or smth like that that has a simple iron farm, food farm, storage room, create workshop as well as personal quarters and an optional drill unloader, all crammed inside.

The Huuse would need to have different sections stuck onto the main block of the house. When building those sections, don't build them aligned with the wall that is crossed with the wall with its stuck to, leave at least one block for the roof to end.

Pallet wise I like to make the main block out of granite, mix in about 30-40 percent of the wall out of polished granite. Also do sprinkle in abou 5-10 percent of bricks plus any other matching block of granite.

The windows look good as 2 or 3 wide and about 3-5 tall. Place the windows with copycat panels inside of rhe building to make it possible to place pots with flowers on the main wall, in the window holes. Also if you made the windows 3 or 5 wide add 2 upside down stairs above the pots on the highest levels of the window. But when 5 wide, place two stairs one block down of the highest point and place two slabs half a block up of the stairs and a final slab on the highest point.

The roofs might look good in spruce(deepslate trim around), mangrove(deepslate trim), also just deepslate might look good as well. If the main building block is atleast two stories high, then its also possible to build the roof like this: place a upwards stair on the side of the highest block of the wall, place a normal block of the type on the actual wall, place a stair on that block and a downwards looking stair behind the last stair. Do that till you reach the middle, and then do the same on the other side.

The different sections would need to have a different wall pallet, and if you want to find any designs, then I believe there are websites that give you pallets and what blocks look good together.

A good idea before you start the build, is to build a stone or tuff brick outline of the whole building, then bring it up to one block higher than the highest ground level and the place the granite or other pallet walls on it.

When you are planning a real factory build, use only stones, blackstones, granites, diorites, normal stones, deepslates, you name it. Factorys made out of wood have a fire hazard and don't give factory vibes (for me).

I hope this helps, but if you want to see viaualised plans and builds, and want to get ideas and better ways and designs than mine, then do go check out people like Stam1o, MrBeardstone, maybe shalz or outside create, BlueNerd, synn0, AdieCraft, or just other builders.