Vimal Jas Brandavan · विमल जस ब्रंदावन
Meaning
You're right. The verse has two distinct voices: first, Yashoda describes Krishna's glory to her companions; then the poet describes Krishna playing with the young cowherd children.
The corrected translation is:
बिमल जस व्रंदावन के चंदकौ । कहा प्रकाश सौम सूरजकौ सो मेरे गोविंदकौ ॥१॥
The spotless glory of my Govind shines like the moon of Vrindavan. What can the light of the sun compare to the radiance of my Govind? ॥१॥
कहत यशोदा सखियन आगें वैभव आनँदकंदकौ । खेलत फिरत गोप बालिक सँग ठाकुर परमानंदकौ ॥२॥
Yashoda describes to her companions the splendour and glory of her beloved Krishna, the very source of all joy. Parmanand says: Thakur Krishna wanders about, playing with the young cowherd boys. ॥२॥
Original
बिमल जस व्रंदावन के चंदकौ । कहा प्रकाश सौम सूरजकौ सो मेरे गोविंदकौ ॥१॥
कहत यशोदा सखियन आगें वैभव आनँदकंदकौ । खेलत फिरत गोप बालिक सँग ठाकुर परमानंदकौ ॥२॥