
2. Go to Filter -> render -> clouds

3. Use pentool or ellipse tool to draw an ellipse shape with gray color

4. Go to Layer in menu bar, choose Layer style and do as the picture below:
Drop sadow: color #4F372C

5. Inter Shadow: color #4F372C

6. Outer Glow: color #ECD12D

7. Inter Glow: color #2F4C97

8. Bevel and emboss

9. Contour

10. Satin

11. Color Overlay

12. Pattern Overlay: click in the small box beside the pattern and choose rock pattern, you can choose any pattern you like, click OK

Pick a butterfly picture like this

Remove the background of butterfly by some tools like lasso...Set opacity 87% and flow 90% in layer box
Duplicate layer ellipse and put it on butterfly layer then set opacity 32% and flow 50%
Finally, you have a fossil butterfly in resin

Another result

From photoshop8x