Squarespace Programmer

General information for the website: Photography website
Kind of development: Customization of existing website
Num. of web pages/modules: 3
Description of requirements/features: Hi!

I am working on a new website (https://wouter-leduc.squarespace.com/) in Squarespace. The website is almost finished but there are a few things which have to be coded. I have added screenshots of screenshots so you can see what has to be done:
1. The journal is running on Instagram. On the left you see the page on my old website (at 75%) and on the right you see the new one (at 75%). I want the design to be as my old website. Note: Some "landscape" photographers have a white border so the image is a square. Look at the old website here: www.wouterleduc.com/journal
2. Must be really simple: I want the credits underneath the photograph closer to the photograph without changing the font size or transforming it into an image.
3. At the end of the galleries (at this moment 3, but I have to be able to copy it for future needs) I want a text. At this moment I do have a text but it is an image which, as you can see, doesn't work. The text should be only visible when people have gone through the whole project (so no fixed block). Basically the way is is now but as real text. https://wouter-leduc.squarespace.com/ - projects - The God Machine.
Extra notes: