I think you did very well. Your lack of depth at WR scares me a bit, but as long as you don't have major injury issues, you definatly have a shot at doing very well with this team. Obviously, you need to have good transactions over the course of the year as well, however this draft is a very good start.
For missing the draft, this is a solid team. I would be ecstatic if my auto picks came out like that! One thing you might want to do is drop or try to package one of your defenses (both of your d's are solid with an edge to NE) with another player early/mid season for another backup WR, as you are a little thin there. I bet you could get a solid WR for Miami (or NE) and Alge depending on the needs of other managers in your league. I havent looked at your bye weeks for those positions, so you might wanna check that out also before you make any decisions. Good Luck.
Yeah, you got (arguably) the 2nd best RB, (arguably) the 2nd best WR and the top QB. It was said before, but if your team stays healthy (and Harrison, Manning and Jackson have so far throughout their career) you have a shot at making some waves.