Been playing minecraft, dont like the look of it? You could use a texture pack but then that ruins the fun
of making things look good with your creativity now thats where i come in me and many other minecrafters
are great at using blocks like half blocks and stairs for creating more of a curved look then a plain old blocky
look.

Step 1: Smoothen out transitions of block layers.

Step 2: Use more blocks than just one block EG: Brick, Stone, Wood.

Step 3: DONE! its that simple.