Picture Description [Present Continuous]

Mike and Sarah are on a hike.
Sarah and Mike are friends. It is the weekend, so they are on their way to the mountains. Sara is a little bit tired. So they decide to take a rest now after hiking a long way.
Mike and Sara are sitting on the ground because of the hot summer weather, and the ground is warm. Mike is telling Sara a funny story. She is laughing because she likes his stories. Sara is a little bit hungry, so she is eating an apple.  And Mike is thirsty, so he is drinking water.
Their backpacks are lying near them. Mike's backpack is blue and white, and his is heavy. And Sara's backpack is green and gray, and hers is light.
There are many stones (rocks) on the road but it is not a problem, because these friends have good hiking boots.
This is a very hot and dry summer, so the green grass is transforming to deadwood(straw, hay).  The sun is shining, so all the animals (birds, insects and snakes) are hiding in the shade.  It is very quiet for this reason.
After their rest, these friends will go to the peak of mountains and they will have a good rest under the clear open sky. They will be looking at stars and dreaming about the future. :)

Picture description [Present Continuous]

Yes, you can use present continuous in describing the picture as reference.

Mike and Sarah are hiking [present continuous] in a hike.

Sarah and Mike are friends. It is weekend and so they are on their way to the mountains. Sara is tireda little bit tired and So they are having a rest after a long trek way.

Mike and Sara are sitting on the ground because it is hot in summer so it is hot and the ground is warm. Mike is talking to telling Sara a funny story. She is laughing because she likes to his stories. Sara is a bit hungry a little bit and so she is eating an apple. And Mike is thirsty. He and is drinking some water.

Their back-bags backpacks are seen lying near them. Mike's back-bag is a heavy looking blue with and white and his bag is heavy. And while Sara's back-bag is green with gray and looks quite  her bag is light.

There are many stones (rocks) on The road is rocky but it is not a problem, because the friends have good heavy duty hiking boots.

There is very hot and dry summer. The summer is very hot and dry.  So All the green is transforming to deadwood(straw, hay) turning brown. Sun is shining so all animals (birds, insects and snakes) You don't see any other creatures in the picture as they are hiding in the shade shadow. There is Hence very quiet all around them , this reason.

After their rest, friends they will go be climbing to the peak of mountains and they will have good rest under be camping under the opened and clear sky. They will be looking at the stars and dreaming about of their future. :)

Good description.