Hi Leuce, welcome to WAB! I'm sure if you posted pictures of trees some of the clever people on here would help identify them for you. If you include close-ups of the bark and twigs that would probably help (you can tell I'm not an expert on this subject!).
You need to upload your photos into the galleries here (probably into Unidentified or Forum Images) and then 'cut and paste' the Forum Code from there into your post. If you've not already seen it, there's a helpful information page about this -
http://www.wildaboutbritain.co.uk/information