Hello,
Hope you are doing well. I have gone through your post, and I believe I can be the most suitable person to undertake this assignment.
I am a fashion student and have considerable amount of design knowledge. I am also well versed in the software that you have mentioned. I can assure you that, the work would be done within the provided time frame with utmost accuracy and in the most professional manner.
I am available any time and can start work immediately. Thank you for taking the time to consider this proposal. I look forward to hearing from you shortly.