Job hunting

a few points:
Seach of vacancy
CV (Curriculum vitae)
Cover Letter
Interview

and other qualifications for a job opportunity.

their curriculum vitae or applications for employment as a way of introducing themselves to potential employers and explaining their suitability for the desired positions

always start with your contact details, date of writing, and the receivers information such as name, title and address.
The first paragraph should inform the readers on how you came to know about the job opening. If it is an unsolicited letter, then describe something about the company that made you to apply. Be particular when distinguishing the position you are interested in.
Be precise and relate your skills and experiences to the employers needs. State the projects you have handled. Mention about your interior-design qualifications and internship you have done.
Try to appeal to the reader with the look of your cover by applying your designing Let the readers see that you have applied your planning skills in writing the cover letter.