When first starting to bezel set stones, round and oval cabochons are the easiest. Adding corners makes it a bit more difficult. The point of the blue ice cabochon is wider, and therefore the bezel can be a bit more rounded.
The rust-colored cabochon is VERY pointed so the bezel needs to be treated differently. I personally do not like cutting a "V" notch in the bezel wire at corners or cabochon tips if I can help it. However, the longer and skinnier a cabochon is, the narrower the point is. In that case, a "V" notch cut at that point in the bezel will most likely be necessary so that the bezel wire can fold over the tip of the cabochon.
Stick with wider teardrop cabochons until you get the hang of bezel setting and filing back bezels at tips and corners. The confidence gained will make it easy to transition to bezel setting stones with those pesky narrow tips.