A prayer before class

This is another one from the five you picked I like.

Because:
- the girls in the white dresses. It's rather uncommon view and it's underlined by the numbers of girls
- the interesting moment you caught - again makes me so hard to think, 'what on earth are they doing? praying? singing?'. The good photo always makes you wonder. That's what I believe! <img src="e.deviantart.net/emoticons/s/s…" width="15" height="15" alt="" title=" (Smile)" />

Now the bad things. <img src="e.deviantart.net/emoticons/w/w…" width="15" height="15" alt="" title=" (Wink)" />
- sharpness, contrast, the light... They need improvements here and probably just another try. Still these are not a factors that could ruin the photo. I'd say just the little shortcomings.
- the crop - I think it would be nice to have a bit more space in the upper and lower part, especially to see the whole legs. <img src="e.deviantart.net/emoticons/b/b…" width="15" height="15" alt="" title=" (Big Grin)" />

And what I think you can do more about it....
Mind these are mine preferences, the post processing is always a matter of choice of the author.
A bit brightening and a bit sharpening. Check how it looks like b&w, though mind that you have a strong point in the green blouse of the lady in the centre. Maybe it's a funny idea to leave only green coloured and the rest b&w? Also I like the skin tones compared to the white dresses. Maybe adding some fancy blur to make the girls look more angelic? <img src="e.deviantart.net/emoticons/w/w…" width="15" height="15" alt="" title=" (Wink)" />