This is a really fun design. Here are my thoughts
-The windmill looks out of place. I think it should be connected to the house as a power source instead of just off to the side.
-You said that the final will have a different perspective. Because of that I really can't offer much critique except to say that this perspective is pretty boring because its perfectly from the side. it feels more like a schematic as opposed to an illustration.
-What is powering the wheel on the bottom left? if It is a body of water it would be nice to see the body of water to know that there is plenty still left to keep the wheel turning for years to come, or else maybe attach it to the windmill for power, or have a waterfall?
-Play around with textures to showcase the different parts of the house. you have a great brick texture on the bottom of the house. but I can't tell what the foundation is. rock? glass? a thin black line? You can have a lot of fun with textures on the roof tiles and bridge.
-I would encourage you to steer clear of just using parallel lines to say "This is glass" on the back half of the house. I do read it as glass, but because all the lines are perfectly parallel it makes that gazebo look flat like a fine sticking out of the back of the house.
-I'm iffy on the composition. I'm not sure if the edge of the paper is your frame? I think you should do some simpler thumbnail sketches inside a 2x3" frame to arrange it in space better.
Overall I would suggest you do more exploration before moving onto the final. but I think you have a good idea here and should keep up the good work!