Aww thank you for playing! I'm glad you loved it!
Ooh good luck with your development! About CG albums, actually, I didn't bother trying to code it at first because I don't really like coding. But I've tried adding it for my upcoming project and it's actually much simpler than I thought! I recommend Zeil Learnings vid as it's simple and easy to understand. Zeil also has a template for it too here. You can find other tutorials in her youtube channel and they're really helpful for me, so I hope you find them helpful as well!
If I have to add another tip, make backups of your project. After you're done working on it, try to create a backup as soon as possible (I use google drive personally, but anything works). While coding, you may or may not screw up and your codes are just this copy and paste failed mess (uhh totally not speaking from experience). This is where the backups come in handy, as you can just redownload that file and try again.
God that end up being long. I hope this knowledge can help though! Again, good luck with your project, don't forget to take a rest if you're tired, and feel free to just contact me if you need help with anything! I'll try to help out the best I can, even though I'm still a noob at renpy LMAOO