Is it alright if one of my bottom tooth is touching my crown tooth? (photos)

If the bite feels uncomfortable, best if you go back to your dentist and have the crown adjusted.  If the bite is off and you wait too long, this can create more severe issues that will require additional treatment.  

It says that your tooth feels too big while your chewing. While teeth in the front are supposed to touch, it shouldn't feel like it's the only thing touching! If this is the case, then go back to the dentist to get it smoothed out to fit in your occlusion (bite).