A few queries about Windows home drive encryption and imaging with Macrium

The image will be unencrypted unless you specifically take measures to encrypt the image file itself. By default, Macrium creates a raw disk image, which is just a binary copy of the drive contents. If the source drive is encrypted and unlocked during imaging, the image will contain the plaintext data (since the encryption is transparent once unlocked). If the drive is still encrypted and locked, Macrium won't be able to access the data, and the image will be essentially a blank or corrupted image.