Not very nice or helpful there... What is lazy or poorly done? I see some stuff, but be specific. Otherwise, how can they improve?Here's what I notice:Layering issues galore. Starting from the bottom, the dark grey outside should probably be the top layer. The gray highlight triangles should be behind this. Doing this layering would reduce the main overlap issues here.The gem is stylistically interesting, but not show accurate. Use stroked paths to make the dark red lines. Put this layer on top. Create filled paths for each highlight color and put these behind.The horn could follow similar techniques to those stated in bullet 1. Put the dark grey in front, then put the white lines behind.There are a lot of square ends, where things should be pointed. You should really consider doing more stroked paths with fills behind, rather than what look to be filled paths with another filled path on top.Feel free to contact me for help if you want to improve it!