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Drawing a Proper Soldier using Photoshop
Under Drawing Effect, Photoshop Tutorial
Drawing a soldier is like drawing other characters which needs to be initiated from drafting. Once you finished your draft, you can start painting and start to set up your brushes. Different designers would have different skills you can refer.
It is not easy to paint a nice drawing due to it requires a lot of painting and photoshop skills. To paint a portrait and image, they are more or less required similar skills. The idea is to paint them layer by layer like adding shading and shadow effects.
Liquid motion is too irregular that is difficult to be created. However, you can start with drafting and paint it afterwards following to this tutorial. Otherwise, you need to find a image about water motion and apply photo manipulation instead.
Create a new document the size you want your simcards to be, select the rounded rectangle tool and draw out your rectangle, fill with your choice of color. Select the simcard layer and cut the corner off. You should then have something like this.