Yeah, there are definitely perspective issues, problems with scaling, and no clear subject, but the lighting and texturing is really well done and it's clear that you put effort into this!
This could pass well for an intentionally surrealist piece. I have no clue what's going on, but it sure does look nice.
I recommend two things: One, building mockups of the scene you want to draw in Minecraft (provided you play it- maybe Gmod would work? My half blind Danish friend bought me it on Steam once but I barely played it), and two, having a look at some of EtheringtonBrothers' "How to THINK when you DRAW!!!" tutorials.
Building a mockup of a 3D background in Minecraft or other 3D games/software helps immensely with getting the perspective right. EtheringtonBrothers tutorials are also super good for learning to draw objects you're inexperienced with.