Step 1: Concept Identification:
The objective is to ascertain the painter of a specific artwork attributed to the Bikaner school of Rajasthani miniature art.
Step 2: Elaboration:
The Bikaner school stood as a significant hub for Rajasthani painting, distinguished by its delicate lines, subdued color palettes, and pronounced Mughal stylistic elements. A preeminent artisan of the Bikaner school in the 17th century was Nuruddin, credited with numerous seminal works, such as 'Krishna on a Swing with Radha in a Melancholy Mood' (or similar iterations). This piece exemplifies the Bikaner style, merging Mughal sophistication with Rajasthani emotive expression. The other artists mentioned belong to distinct schools:\[\begin{array}{rl} \bullet & \text{Nainsukh and Pandit Seu were prominent figures of the Pahari school.} \\ \bullet & \text{Dana was associated with the Kishangarh school.} \\ \end{array}\]
Step 3: Conclusion:
The artwork is attributed to Nuruddin of the Bikaner school.