Mark as already mentioned, the top can darken very quickly, and it starts from the minute that it's cut/planed/sanded. Also remember that timber is a natural material and consequently no two pieces are identical.
As the timber on your guitar ages, not only will the colour change, but also the sound will develop. This, of course will not apply to the back and sides because with them being laminated on the 110, they will remain the same.
From my days playing classical guitar (a long time ago), the accepted rule was that aging of the back and sides of a guitar, made no difference to the tone, it was only the top that made any difference, and this did not apply to Cedar topped instruments, only Spruce.
Yours is a fine looking guitar, and I'm sure this will be reflected in it's tone, enjoy it!
Regards,
Ian.