Warm Social Welcome Copy

I’m launching brand-new Facebook, Instagram, and LinkedIn pages and want a single, friendly “selamat datang” post that instantly feels like a chat with an old friend. The core task is copy: about 50–80 words in a relaxed, conversational style. It should read naturally in English, sprinkle in that Indonesian greeting, and adapt smoothly across the three platforms—think a hashtag or two for Instagram, a line break for Facebook, a slightly crisper close for LinkedIn, maybe an emoji where it fits.

Here’s what I need from you:
• The final welcome text supplied in an editable file (Google Doc or Word).
• A short set of platform notes explaining any tweaks you’d make for each channel.
• Optional but welcome: a quick visual idea—perhaps a simple colour palette or background suggestion—that would complement the copy. A Canva mock-up or hex codes are plenty.

If you’ve written similar social greetings before, let me know so I can see your style. Clarity, warmth, and a touch of playfulness are the goals; no stiff corporate tones.