Who is the designer, in your honest opinion?
But most assuredly, I Spiritually know that the Creator of "all that there is" is God through Jesus Christ (Gen 1, John 1, etc.) Even so, the creating process is ongoing and He thus may have allowed for man, or any intelligent entity (from cells to collectives) to be part of the process which results in a 4D sense of "reality".
The God of Abraham. I know you didn't ask me but what the hell.