Looks good for a first build. You definitely have the blocks lined up evenly. I agree that it could use a bit of ruining to make it look more like a ruined building. I use a pair of pliers to chip the edges of the blocks that I want to make look broken. I chip at the blocks so I can get the amount of ruin that I want without taking too much. Save the broken pieces to make rubble around the edges of your build.

You are off to a good start and I am interested in seeing more of what you build. Thanks for sharing.

Werepug