`app.py`: update default prompt

app.py

@@ -113,8 +113,8 @@ with gr.Blocks(css=css) as demo:
     with gr.Tab("txt2img"):
         with gr.Row():
             with gr.Column(scale=6, min_width=600):
-                prompt = gr.Textbox("puppies in a cloud, 4k", placeholder="Prompt", show_label=False, lines=3)
-                negative_prompt = gr.Textbox(placeholder="Negative Prompt", show_label=False, lines=3)
+                prompt = gr.Textbox("space warrior, beautiful, female, ultrarealistic, soft lighting, 8k", placeholder="Prompt", show_label=False, lines=3)
+                negative_prompt = gr.Textbox(placeholder="Negative Prompt", show_label=False, lines=3, value="3d, cartoon, anime, (deformed eyes, nose, ears, nose), bad anatomy, ugly")
             with gr.Column():
                 text_button = gr.Button("Generate", variant='primary', elem_id="generate")