First let me thank you on a whole bunch of sketch commissions, all of which have come out absolutely wonderfully. I'm not talking about just this page either, I mean all 11 of the sketches, and all your other sketches. You are improving extremely rapidly, your perspective in general is fantastic and your compositional skills are vastly improving from picture to picture. I expect if you can keep this level of dedication up, you are going to be a VERY impressive artist in no time at all.
I'm going to treat all these sketches as different pictures, as they're all deserving of their own comments, so without further ado:

Top Left:
I never expected you to draw this one as a perspective shot, so that is certainly a pleasant surprise! Perspective is something that you're getting better with every picture, so keep at it and you'll become a master at it. Kiya's looking absolutely great, and with the perspective she looks absolutely massive! I really like the flowing ribbons and hair giving a sense of a breeze to the picture. That's a really nice touch that can really add to the dynamics of a picture. Great job! Also I'm allowed to imagine those pyramids are nearer the camera than they probably are c.c.

Top Right:
Absolutely stunning! Quite possibly my favourite picture on the page! She really, really does not look impressed by the smaller macros playing around the Egyptian monuments down there. I really like how they're clambering over them like they're on a climbing frame - but either way, they're in for a nasty shock when they turn around! And if they don't notice her soon, they'll notice her soon enough when the entire sky darkens around them! Great job on the perspective, I think the perspective on the first picture looks a tiny bit forced, but this here is absolutely spot on. Great job!

Bottom Left:
The other contender for my favourite picture on this page! For some reason I really love the idea of extremely large macros picking up chunks of land, and this is a fantastic example of such a concept. Kiya here is looking exceptionally pretty, and the smaller "megamacros" seem to be quite awed. Lovely work!

Bottom Right:
This one's a fun idea, and the tiny little Kiya is absolutely adorable. It's really amusing to think that she'd be building all these different monuments out of lego. The proportions work really well for age, and the lego structures are looking good! Great job!

Drawing your characters was really amusing, I appreciated it a lot!

Since young I like perspective and when it is combined with macro/micro we can get such interesting and amusing results!

And you're my inspiration to do these artworks ^^ Right here there references of Pawsing Time IV - Antiquity and An Interesting Discovery!

Thank you very much for your kind words!

Heh aye! Well you did a fantastic job. Thanks a lot.