Creating a content pack - Ideas?

[ElixiraStardewValley]

I am challenging myself to make a content pack for Stardew Valley, Ive played it for a long time excluding and including with a lot of mods, I tend to play with expanded, ridgeside, passerby, east scarp, Zulu, any mods adding additional exploration areas I really like specially after completing the main story and completion its nice to have a few extra things.

I've had ideas to make a Content pack of my own for awhile now but honestly it was scary to think about and a bit overwhelming, one of them is not knowing where to start when it comes to coding, I am slowly learning from tutorials when it comes to the basics and making the Maps at the moment. I like making the art, music and maps ect but the coding is a bit troublesome and my least enjoyable thing. I'm still in the planning phase for a lot of stuff for it but I was hoping to get some advice and maybe some further ideas of what I could add. 

I want to keep it as best as I can to the vanilla game a bit magical, lighthearted and relaxing but not overwhelming. 

I've shared some files in the below of a my first draft of a map(not actual map but more just layout), it will be split into 3 maps, town, docks and beach. then further maps for the cave/mining areas, forest area, cemetery, herbalists area and mermaid and pirate caves. also including some music and a draft info sheet of characters, town, festivals, events ECT. 

I need a second opinion on when it comes to the music as ive listened to it so many times it no longer sounds very fitting for stardew but I'd like to hear other peoples thoughts. (I've included Cali's theme(mermaid cave), Town theme song and Forest edge/Guardian Grove theme song for some examples.

I need a name for the town from someone! Honestly I've spent my time wracking my brain for one but it just doesn't fit... 
 

https://www.dropbox.com/scl/fo/3fxus7qqt9sqsiiinn6a5/AFOyUww0gO4FFT0ncP9s1hg?rlkey=uw9r7122m8nlofvg3eh5puemj&st=kol4tp6m&dl=0

Another question is if some of my ideas are 'doable' when it comes to coding it, I think ive gone and bit off more than I can chew, I'm missing some information and ideas on what do to when it comes to certain things so I'd love some ideas if anyone had any to incorporate. 

I am currently sorting out dialog and events so here's a sneaky peak at one of the characters I'm working on.... am I doing this right aha? Honestly not sure how long it will take me to complete all this could be 2 year or more depending on when I get time to work on it...

{
  "Format": "1.18.0",
  "Changes": [
    {
      "Action": "EditData",
      "Target": "Characters/NPCDispositions",
      "Entries": {
        "Elias": "adult/male/datable/neutral/Other/Default 26/0/town 9 5/Elias"
      }
    },
    {
      "Action": "EditData",
      "Target": "Characters/Dialogue/Elias",
      "Entries": {
        "Introduction": "Oh, hello. My name's Elias. I work at the town hall with Alder. If you ever need any paperwork or history records, let me know. I might be able to help... maybe.",
        "Mon": "Just another busy day at the hall. I swear, papers breed when you're not looking.",
        "Tue": "Have you ever wondered how many secrets are buried in these hills? It's enough to make anyone curious.",
        "Wed": "I spent hours reading last night. My eyes are paying the price today.",
        "Thu": "The town hall feels quieter than usual today. Almost... too quiet.",
        "Fri": "I'm planning to take a break later. The cliffs near the beach help clear my thoughts.",
        "Sat": "Weekends? I usually spend them catching up on tasks I didn't finish during the week.",
        "Sun": "Do you believe artifacts can hold memories? Sometimes I wonder if these shards still remember their purpose.",
        "RainyDay_1": "This weather makes it harder to focus. At least I won't feel bad staying inside all day.",
        "BeachVisit": "The cliffs here are calming. Sometimes I like to imagine what stories the ocean could tell.",
        "ArtifactQuestStart": "You look like someone who's good at digging around. How about a challenge? We're missing pieces of some ancient artifacts, and they might be in the mines. If you're interested, come by the hall and I'll explain more.",
        "ArtifactQuestProgress": "Any luck finding those shards? Some of them should have distinct patterns carved into them.",
        "ArtifactQuestComplete": "You found them! Amazing work. These shards will help restore our collection and uncover more history. Thank you.",