Sorry about the wait, I was away for the last week. I'm glad to see your interest in the server!
Nice work with the apphouse; not really seeing any issues with it. You did a great job with adding small immersive details as well. Hope the exercise was helpful for learning our server's building style. For subsequent challenge builds, you'll be expected to build original houses of your own design, in the style of specific locations on our server. However, I recommend thinking of it similarly to the application house - except now, instead of simply replicating a house, you should try to replicate particular elements of multiple houses, and synthesize them into an original creation. After each one I'll give some feedback.
For the first challenge build, please make a middle-class house in the style of /warp woodwright. Let me know if you have any questions about anything. Good luck!