The planet would be Neptune and Earth's average time is 365.2 days aka a full year (1 year).
The epidermis is the outermost layer of skin and is app. .005-1.5mm thick. it is made up of several different types of cells with keratinocutes being the most abundant.
The dermis is the second layer of skin and is app. .3-3.0mm thick. And basically consists of connective tissue.
Sand dunes or desert pavement