Create an ultra-closeup photo of lemon bar cookie cups. Each cookie cup has a golden-brown crust, slightly crispy on the edges, and is filled with a vibrant, gooey lemon curd filling. The top of each cookie cup is garnished with a dusting of powdered sugar, giving a soft, frosty look, and a small dollop of creamy topping. The background is soft-focused, highlighting fresh lemons, a few green leaves, and possibly more lemon cookie cups in the background. The lighting is warm and inviting, emphasizing the texture and glossiness of the lemon filling. The overall atmosphere should be fresh, zesty, and indulgent, capturing the tangy sweetness of lemon desserts