Here I am walking on forest, can Helly Hansen WaterProof leather shoes survive on this?

No Way they can! The seams of the shoes leak also and even moist twigs are enough to get your socks wet.

The walking procedure with Helly Hansen WaterProof leather shoes goes like this:
1. Wear the shoes and go walking
2. Turn back home when your feet are all wet and cold
3. Change dry socks
4. Set the shoes to a warm place to dry up