Prompt:

Design a cohesive set of 8 hand-drawn icons: silver bar with a small gold stripe on top, circular arrow around a box symbolizing returns, single crystal with a leaf symbolizing ethical production, simple truck with a small 'EU' label, calendar with a curved arrow around it, small mountain with a pattern symbolizing craft, two hands exchanging a coin, and shield with a checkmark. Use a sketchy, artistic line style with slight imperfections. Ensure all icons share the same style and line thickness, and are easily recognizable. Each icon should be in a square format with a resolution of 1024x1024 pixels. --v 6.1

設計一套統一的8個手繪圖標：一根頂部有小金條的銀條，圍繞一個箱子的循環箭頭象徵退貨，單個水晶與一片葉子象徵道德生產，簡單的卡車上有一個小'EU'標籤，日曆周圍有一個彎曲的箭頭，小山上有一個象徵工藝的圖案，兩隻手在交換一枚硬幣，以及帶有勾的盾牌。使用線條風格略顯不完美的草圖藝術風格。確保所有圖標共享相同的風格和線條厚度，並且易於識別。每個圖標應為1024x1024像素的正方形格式。