Help please

You can make a LAN server and let your alt on it. I suggest using optifine and shaders to make your builds look good.

 

If you would like to take photos of your builds, I would suggest simply just using minecraft's in-game screenshotting tool. However, as @TronosWasHere said above, Shaders & Optifine makes your builds look better.

To take a screenshot, press F2. (I would suggest pressing F1 first to hide your HUD) After you have taken the screenshot, press Win + R to open up Run, and type in %appdata%. Navigate to .minecraft then open the folder called "screenshots". You will find all of the screenshots you have taken there.

If you would like to make a time lapse, I would use another account using a LAN Server. Record the footage. I strongly recommend the free editing software called Hitfilm Express. It's easy to use and there are lots of tutorials on youtube that you can find to help you edit your video.

Links (Clickable):

Hitfilm Express
Optifine
Shaders (There are lots of different shader packs, so here's a good article which suggests a few. To install shaders, just look it up on YouTube)


Have a nice day :)