Hello Sir,
Thank you for inviting me to your logo contest, but I already submitted a design that is available at your design pool.
Any private feedback is always appreciated,
Kindest Regards,
Pablo

Hi Pablo, I do apologize for that, my partner and I was trying to navigate the design crowd website and inadvertently clicked on inviting designers. We both like your concept thus far, and will be discussing it next week  

Hello. I am wondering if you have checked my logo design for your company. I would love to continue working on your project and make adjustments if necessary. I am looking forward your reply. Kind Regards, Vlad