identification

I was given seeds approximately 2 years ago and these 6 trees/plants sprouted. The person that gave me the seeds believed they were giant sequoias. After a little research I'm not sure that this is the case. I'm new to bonsai and need help from some more experienced person.

Hi, I'm new to this website and I'd really like some help with the tree that I just received yesterday. Somebody gave it to me, and they got it from a mall, so I don't think I can really do much but keep it healthy. However, if possible, I would like to make it more aesthetically pleasing, clean...