Day 4 - Black and white photography

On the first day of a black and white task, @serkagan appointed me to take part in a seven-day black and white call. This is my fourth entry for the contest. The rules of the game are as follows:

Here are the "rules":
• Seven black and white images that represent an aspect of your life.
• Imagine one image every day for seven days.
• No people.
• No explanation.
• Assign someone every day, but everyone can join in the fun.
• Use the tag - #sevendaybnwchallenge - as one of five tags.

Today I appoint @markush