It's better... but i think you need to grasp the concept of depth cueing...
look out to the horizon... what do you see?
Do things get darker as they get further away? or do they get lighter?
The answer is - they get lighter and less detailed... the invers being, that things in the foreground are darker and more detailed... (generally speaking)
You can apply this on the small scale regardless of what you're drawing, be it a still life, or a landscape, the fact remains that distant object are lighter and neare objects are darker. (there's a bit more to it than this, but for the purpose of this that's all you need to know)
Now, apply this to your castle...
The darker, more detailed stuff is at floor level, and the lighter less detailed stuff is higher to the viewer... or in other words, the exact opposite of what is naturally occurring in nature...
Maybe you're still working on the piece, in which case, fair enough, but bear this in mind...
This is the reason why, I put an dark outline around the edge that's in relief from the floor, this LIFTS, the image off the background... and is a shorthand method of making your work standout...
tis up to you though... take it... or leave it...
Keep on pushing !