Okay looks simple. If you want I can give you my Minecraft skin rig template so you can color it better on blockbench. I make all my models on blockbench.
Look in Preferences > PROGRAM
It tells you what Minecraft version the program uses.
Then you just install that Minecraft version and you’ll be able to import the scenery.
https://www.mediafire.com/file/g2b7vb1utos3jln/Mr._Puzzles_Rig.zip/file
Things to Know: This pack includes access to the Mr. Puzzles rig on Blockbench which is mostly gonna be used for making different facial expressions. The bbfile comes with the pack. Feel free to make any expression you want using the mouth maker. Remember the outline must be black but the inside must be opacity 7% white so you can see inside.