Ask the bricklayer to evaluate my sketch. ...

I'm not an expert, but I'm an art student. I can tell you

First of all, the perspective is not very accurate

Secondly, the relationship between light and shade is not well grasped, and the overall picture feels gray, resulting in a flat picture with no stereoscopic effect.

This is just my personal opinion, but there are also problems that the photos themselves are not very clear. What I said is only superficial and for reference only.