Indiana Jones-movie still practice

This altogether took a little bit past 3 hours, done like a hr each day in the span of 3 days ( I was really distracted) played around with brushes and tools that Photoshop has. A friend once told me, quoting from a teacher, that "don't treat Photoshop like a paint brush with an undo button", so this time I tried not to. (ummm bottom half not important so yea.....).