My niece wants this blanket but upon a reverse image search I can't find a pattern. Can anyone tell me what the stiches used are?

Of course the one reference picture my niece sends me isn't for a pattern but for an already made blanket.

I haven't seen the raised stich before and cannot figure out what it is. And are the other stiches sc or dc, or are they even taller than that?

Of course the one reference picture my niece sends me isn't for a pattern but for an already made blanket.

I haven't seen the raised stich before and cannot figure out what it is. And are the other stiches sc or dc, or are they even taller than that?