I really like this wall.
I haven't seen walls like these a lot,
and I really love the mood and atmosphere.
The only thing I'm concerned about is the flower petals
They are nice, but right now, they aren't blending in nicely with the wall.
Try playing around with layer effects and opacity levels.
Also, the text is a bit hard to read.
Maybe you went for that kind of look,
and its not really that big of an issue,
but it would be nice if you can make it visible.
By the way, what is with the rectangle around the tomb saying
"THIS IS BROWN, the most boring colour ever"?
How did that happen, and why is it there?
Anyways, good luck on the wall,
and let me know if this wall gets accepted in the gallery!

ps. the wall is close to becoming super busy; don't add any more stuff in it!

Okay, this is a lot better than your first version! The hidden text was a nice touch but because most wouldn't catch that, I'd suggest putting that into the description so people will understand. I like the sakura petals, because it's a nice contrast to a dreary wall... but can it be a little more sparse. Good luck!