CONTENT COMPOSITION
I think that you have a bit too much empty space here, so the impact of the crystal is lost. If you had cropped off the top couple of cms, you would have got rid of the ditracting black corner and added more emphasis on the crystal. A real close up of this could have been interesting and you could try photographing it from different angles. However, I think that the background is good and the way the background is shown through the crystal is interesting.
CAMERA WORK TECHNICAL
Focus appears to be on the backround instead of the crystal, which is a shame as the crystal has some interesting shapes at the bottom and would benefir from being sharper. The lighting is also a little harsh, especially on the left side of the crystal, maybe try a bit of indirect lighting or even candle light could be cool.
MY OPINION
Overall, its a good capture of something blue and with a bit of cropping and sharper focus would be great. Its an original picture and the starburst from the lighting is cool! I hope that this helps!
challenge -- met technical -- i like the light reflecting from the crystal, but it is a little too blown out on the crystal itself. don't think you can have one without the other unfortunately. also pretty cool that the mesh in the background can be seen through the bottom of the crystal. composition -- the black corner on top is distracting, a closer crop would've removed that. would it have been able to photograph this head on so that the mesh lines were straight? it may not have worked with the reflection, but if it had, i personally would've preferred that. -- gr8photos
The black in the upper left is a distraction and a bit less light on the subject would be nice. I think the picture is pretty clear though - nice focus.
The background takes away from the crystal. And it appears that the background is more in focus than the crystal. Also, the black in the top corner is a bit distracting. It is a nice blue reflection off the crystal, however.