It is hard for me to write a critique, because I love the work you do so much! But, you asked, so here it goes!
I would first like to say, that I really appreciate the style you painted this with, It really is lovely - the blue is just striking! Maybe a bit much with all the white, but we will get to that...
You say you are experimenting with the sky and clouds, and it would be far too unfair to critique you on what I "think" a cloud should look like, as I feel clouds have always been this interpretive element to art. That being said the style that you used, worked well for your theme. I would suggest you try adding in slight yellow hues to shaded areas of the clouds, just to break up the harsh white against the vibrant blue.
The reflection is very calm, as in no ripples in the water, you could add one or two here or there just by selecting certain areas of the water and distorting them and then adding darker blue for the ripple edges.
The only thing I see as "slightly off" in this, is the horizon. Maybe just a very thin shimmering line to separate water from sky...Then again, that is my personal opinion.
I still really love this, you have achieved a very calm but bright emotion that lets the viewer just sit back and feel relaxed, very much like day-dreaming or having "Soaring Hopes" and that to me is beautiful art.
This grand piece is what mainly caught my attention in your gallery. Even though all of your works are amazing, this one in particular is very well done. I love the overall look, as it is a classic sky reflected on water, but it is done in a style that I've never seen before. The clouds are simplistic little blotches, making them look abstract almost. Placing them randomly while still letting us see the sky was also a smart move. The shading and reflection is a small addition that makes a big difference. And finally, the little girl is what this image is all about. She seems so innocent and small, yet her dreams are large indeed, as the title states. Anyway, this is a very well done image, and I can't find much to critique, but rather, so much to admire. Phenomenal job!