In Jain scriptures, Bhagwan Vimalnath’s important life‑events (kalyānaks) are connected with the Jambu / Jamun (जाम्बू / जामुन) tree, but:

• Dīkshā (renunciation) is specifically described as taking place under the Jambu/Jamun tree (called Jambu-vriksha or Jambu kalpavriksha).
• Many modern artists therefore also show Keval‑jñān under or near the same tree, but this is an artistic choice, not a detailed scriptural description of “a particular jamun tree picture”.

As an AI I cannot generate or fetch a ready-made devotional image from Jain art sites, but you have two options:

1. For a traditional, acceptable concept

If you are getting a painting made, you can safely show: - Bhagwan Vimalnath in Kayotsarg or Padmāsan, - Under a large Jambu/Jamun tree (dark trunk, dense green foliage, small dark‑purple fruits), - Divine samavasaraṇ around, with devas, humans, animals listening.

This matches the Jain narrative that his kalyānaks are associated with Jambu‑vriksha and keeps it spiritually proper.

1. For an actual photo / reference image

- Search online (image search) for: “Vimalnath Bhagwan diksha under jambu tree painting” or “Vimalnath kevalgyan jambu tree”. - You will find several Jain calendar‑style paintings and temple art showing the jamun tree during his kalyānaks, which you can use as inspiration.

You can also read basic information about Bhagwan Vimalnath here