The first resin cast of the shark turned out relatively well. There were minimal bubbles along the surface which was to be expected since I put it in the pressure chamber. I set a corkscrew spiral in the mold before the resin was pours so that the part would be cast around it and I would be able to test how sturdy it would be for future pours. 

One flaw with the first cast was the absence of one of the fins due to air getting trapped in the fin and not allowing it to fully form. Adding a weep hole at the tip of that fin was the one thing I added to the mold, but I didn't need to make any other changes for future casts. 

Lastly, as I was painting the first cast I realized that the resin had begun to sweat so I stopped painting that cast and eventually discarded  it.