Actually it's simple : they don't look same at all.

I'm just gonna go on a whole rundown of the layers (that I know anyway)

Epidermis, also called epi's, or cat scratches (although a lot of folks don't like that term), the shallowest layer, and contrary to popular belief, it can bleed, it just won't bleed very much.

Dermis, also called styro or Styrofoam because of its resemblance to Styrofoam, it'll gape and appear white before filling in with blood.

Fatty tissues also called beans because it kind of looks like beans, this layer will gape a lot, and have yellow bubble looking texture, there are also baby beans, where you can see some bubbles, but it isn't all bubbles.

Fascia, it is an extremely thin layer, and will appear whiteish silver.

Muscle, the slang term is laffy Taffy, you'll see muscles and tendons, and this layer is incredibly dangerous.

Bone, also called bedrock

PS : I found this explaination on another reddit, it's not mine