On your profile page, it says "no featured content yet". On your first page, does the hub have a black circle next to it, with an H in the center? If it does not, the hub has a no-index tag and cannot be read and will not be listed by google.
Your friends can open your hub by entering the exact address, but no one will find it on google. It may not have passed the quality assesment program, so you could do some editing (and have someone else look over the spelling and grammar) and try to submit it again.