You have some nice work there, and I love the image sizes on the homepage, but I honestly felt the LHS menu distracted from these. This hides a couple of shots and truly impacts upon the effort you've made to showcase the selected images. Perhaps a menu along the top, or as a drop-down would assist with this.
I'm assuming your speciality is weddings, and if so, have a site specifically for this. Anything else on such a page makes me wonder if they are specialists in their selected field and if they do understand how important a wedding day is to prospective clients. I'm sure other members will chime in here - but keeping your specialities separate will only enhance your standing within each specialisation.
The link to Weddings is, IMHO, much too wordy - your clients want to see your images and how you can capture their day. As they say "A picture is worth 1000 words." and although what you have written is passionate, it is rather repetitive, and I felt it was trying way too hard.
Have an About Me link; keep it short and concise, clients want to know a little about you, how long you've been in business, your special skills, etc. Avoid using "click pictures" in your description - you are a professional. You "create memories", "capture special moments", "showcase your special day" the only people who "click pictures" are iPhone photographers, family and friends.
Choose only your absolute best images to show your clients, anything out of focus or blurred, if not intentional, leave out. Something you aren't too sure about - leave it aside and ask another person's opinion. Better to leave it out and have a tight, awesome group than to include one or two that brings them all down to a "they're ok" level.
The Wedding Gallery - I clicked on it, and my first thought was "Huh? Where are the pictures?" Forget the words - you're selling imagery to your clients, that is what they are visiting your site to see. You had some small shots from some of the weddings you've undertaken, but I then had to click again, and several only had one image.
The gallery for the individual weddings are a great size - skip the words in the "Wedding Gallery" and showcase this! I'm happy to scroll pictures, but remember to keep them tight. Anything you question, leave it aside for further feedback. The quick descriptions at the bottom are a nice touch, and that's about all the wording you need.
Remember clients are often time-poor and having to click all over the place to see what you are selling can be a huge turnoff. Having great images that are easily accessible will work in your favour - personally, if I can't find what I'm looking for within the first 60 seconds, I'll leave a site. Some sites get a little more time given to them (maybe) if I'm feeling they have potential; otherwise, I move on to the next one.
I love your landscape work - some truly stunning images there!! Having them on their own website would be ideal - huge images that make the visitor want to purchase is a must if you are offering them for sale. Unfortunately, they're getting a little lost on your site at the moment, and I had to hunt to find them - not a great outcome from a sales POV, but some re-designing and layout work will help with this.
One last item that really annoys me on *any* website is the lack of proof-reading/spelling/grammar checks. I understand that not everyone is a spelling and grammar whiz, but simple proofreading and turning off auto spellcheck in Word does absolute wonders. Ask someone else to read it as well; sometimes we can't see an error simply because we've been reading it over and over - I admit to this on more than one occasion. The biggest mistakes that caught my eye was on the Wedding Page, are right at the very bottom:
"Go through my weeding
gallery to get a preview of my work and if you may find it good enough, feel free to get in touch with me so that I can help you make your wedding day more special and memorable."
and a coding error:
<a href=’https://www.bidvine.com/pro/tomaszjanickiphoto-co-uk’ target=’_blank’ rel=’noopener noreferrer’><img src=’https://www.bidvine.com/external/widgets/images/pro-logo-purple.svg’ width=’150px’ title=’Check out tomaszjanickiphoto.co.uk on Bidvine’></a>
You've made a great start, and I could go into more detail, but if you review some of the basics that I've touched on here, your site can only climb the professional ladder and speak to your clients even more.