Dear sir
I read your job description carefully and I think I’m very qualified for your project.
I’m Unity Senior Developer.
I have rich experience of Unity game develop for 7 years,
I can do it perfectly and no problem,
If you select me, I will show you my best skill and my effects.
I can deliver high-quality result to you, fast turnaround time.
Thank you for the opportunity to submit my proposal for your project.
Best regards.
PS:
if you want, I will show you game I've done