Architectural Drawings for House Extension

I'm seeking a professional to create architectural drawings for an extension/addition to my house. The house are today 100m2 and we plan to ad another 100m2. Classic style, new england:ish. We plan to make the sides of patio in stone like this https://stenbolaget.se/products/murbekladnad-rustik-horn-grafit-400-100x300x30?variant=38147506241712 and the first floor to the extension should have stone walls aswell. We aim to use the natural hight differance to the right of the house in 2 stories. Have som bad scetches that i have made myself where I made of copy of the existing house to the right. I am not so found of my skatches :-0 but just a thouth.,