OK, ref the full works as on your blog, ignoring actual capture and processing, allowing for the fact this is only your second, and also assuming that you're aiming to improve so you can book more gigs ...
You got some good stuff, and the main thing is that you're seeing the pictures as opposed to just snapping away. I do though agree with the above comments about the blog layout, and also about there being no need for both colour and b/w versions of the same shot. Give 'em both files by all means, but only show one or t'other on your blog.
Just a few pointers. One is that you need to start developing the instinct to check your backgrounds all the time so you can spot and avoid things like the door closer in the first shot of the bride, the red blob behind the groom getting his buttonhole fixed, the wall light behind dad as he's walking her in and so on. I know it seems that you've got enough on your plate for now, but this does soon become automatic. Honest. And once you've got the hang of it, you'll be appalled when you notice how some folk never do.
The other major area that you need to think about is a problem that nearly all newbie wedding snappers have until somebody points it out. One of the simplest ways to introduce a sense of dynamics into your snaps and differentiate them from what Uncle Bob turns out is to avoid shooting from your natural eye-level all or most of the time. Try and remember to funk it up a bit by shooting from different heights, especially when you're doing a series of snaps of a fairly static situation e.g. drinks reception.
Ref the confetti shots, your main problem there is that the couple's heads are at the same height as the guests'. That's the main reason why those seem a bit limp. Well OK, that and the fact that you were too far away on too long a focal length to get anything with much impact. Be that as it may, one thing that always helps with a set-up confetti chucking is for you to address the rabble thus "Right you lot, listen up. We'll do a count-down and then chuck it, but don't forget - chuck it up and over them, not at them! So I'll go 3 - 2 - 1 - GO, and on go, chuck it over them, OK?" You'll usually find that most of 'em will do just that and you'll get a far better snap. BTW, was that a burst on continuous?
Posed shots were never my forté, but even I can offer a couple of hints about the bouquet. One is that when the bride hasn't got the thing in her hand, make certain it's out of the shot and not lurking there for no apparent reason like in your first two. And ref those shots with the castle in the background, all things being equal, it usually looks lots better if she's holding the damned thing in the hand that's nearest the camera. "Bunch Of Flowers Over Bloke's Shoulder" is never a winning pose.
All things considered, you did alright there.
HTH a bit.