Excellent detail and a strong sense of light - well planned grown-up shooting. I'm not sure that a judicious crop at the top mightn't have strengthened the composition - you've left me expecting more at top of frame, and pulling my eye from that interesting structure of frozen water which you've placed dead centre. Even that progression to black isn't enough to hold the eye at the top.
Excellent capture of action in this shot. The details are wonderful in that you can see the particles flying off of this explosion. The colors are bold further complementing the explosive action seen taking place. I also like how you framed the composition with a horizontal presentation to complement the horizontal action of the action of this photo.
The geyser image is great, a morph od the sulpher gods. Love the bg gradient. The depth and fiber optic looking edges of the water is something else too.
Good luck with this explosive study.-8-
7 - Good capture and colors. Criticism; better without the people in my opinion. If possible, a slightly sharper, ground up, angle/perspective, while still retaining the top of the 'explosion', may have made this even better, not sure. I do like this angle, but think either a tighter crop on the left (if this is all you had to work with), or else centering the 'geyser' better, and possibly some more foreground for added 'context' (again depending what you had originally), may also have made this even better. edit:spelling