Yep, Bills summed it up well. 3 of your shots really jumped out at me, but not for good reasons. The “I do” shoes need twisting so that you can see the writing better. You shouldn’t have taken the shot when a 1 second improvement was all that’s needed. The black and white shot is way to soft (lacking contrast) and really looks bad next to the punchy colour shots. And the ring shot is just sooooo boring.
Now bare in mind, all you need to do is ditch those pics and you have made a huge improvement to your portfolio. The rest of your shots look technically okay, colour,exposure and focus are not to bad. What you need to work on now is you posing and people skills. The last shots are definite improvement.
Keep shooting and you’ll soon get the hang of posing.