Yes, you are free to buy silver pumps, gold sandals, brown brogues or whatever footwear you like to wear and style them with your favorite green dress
Keep the shoes practical with cowboy boots, especially if you will be walking on grass or gravel
In such a case you will have to send it back to Turkey and all the shipment costs both ways plus the Turkish customs charges will be paid by yourselves
Choose a fabric with some texture: To create a visually interesting and dynamic look, choose a fabric with some texture like lace or embroidery
For adventurous outdoor activities like hiking, I always wear a pair of leggings (these Lululemon legging dupes are my absolute favorite), a sports bra, a baseball hat, sunglasses, and a pair of sneakers or hiking boots (depending on the terrain)