Several types of cloud are evident in this image taken in July of 2017. First, on the right side and in the lower right corner are altostratus lenticularis cloud. The formation has lens-shaped features caused by wave action in a stable environment. The clouds appear to be very smooth but with embedded waves. The remaining clouds are higher altostratus and altocumulus or are at the cirrus level. I would say given the texture of the clouds they are in the middle cloud family - altocumulus and altostratus.
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