Creating compelling architectural renderings in Photoshop involves a combination of techniques to enhance and polish your images. Here are some tips and techniques that can help you achieve professional-looking results:

1. High-Quality Base Image:

   • Start with a high-resolution and well-exposed base image. Ensure that your initial rendering is of high quality before moving on to post-processing.

2. Color Correction:

   • Adjust the overall color balance to achieve a realistic and visually pleasing result. Use adjustment layers such as Curves, Levels, and Color Balance.

3. Contrast and Brightness:

   • Enhance the contrast and brightness to make the image more visually striking. Adjust the Shadows/Highlights or use Curves to fine-tune.

4. Selective Color Adjustments:

   • Use selective color adjustments to target specific tones in your image. This can help emphasize certain features or correct color discrepancies.

5. Sharpening:

   • Apply sharpening to improve the clarity of details in your rendering. Use the Unsharp Mask or Smart Sharpen filters, but be cautious not to over-sharpen.

6. Perspective Correction:

   • Correct any perspective distortions using the Perspective Crop tool or the Transform function. This ensures that lines are straight and perspectives are accurate.

7. Remove Distractions:

   • Remove unwanted elements or distractions from the image. The Clone Stamp tool or Content-Aware Fill can be handy for this.

8. Enhance Lighting:

   • Use Dodge and Burn tools to enhance lighting and emphasize certain areas of the image. This can add depth and drama to your rendering.

9. Add Sky and Environment:

   • Replace a dull or overcast sky with a more visually appealing one. Ensure that the new sky complements the lighting in your scene. Incorporate environmental elements if needed.

10. Texture and Detail Enhancement:

    • Bring out textures and details in the image using techniques like texture overlays or high-pass filtering. This can add a tactile quality to your rendering.

11. Depth of Field Effect:

    • Simulate depth of field by applying a blur to the background or foreground elements. This can help draw attention to the main focal point.

12. Add People and Scale Figures:

    • Integrate people into your scene to provide a sense of scale. Adjust their colors and shadows to match the overall lighting.

13. Custom Brushes for Landscaping:

    • Use custom brushes to add realistic vegetation or landscaping details. This can enhance the overall ambiance of the architectural scene.

14. Consistent Style:

    • Maintain a consistent style throughout your rendering. Pay attention to color schemes, lighting, and overall aesthetics to create a cohesive and professional look.

Always remember to work non-destructively by using adjustment layers and masks. Experiment with different techniques, and consider seeking inspiration from other architectural visualizations to refine your own style.