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Design 1 - Self exploration
The main goal here when I came up with this design to to allow the first time user to learn through a guided self-exploration process.
This is how it works. The main interface consists of a large continuous gallery on the left and a user's sketchpad on the right. The gallery on the left is a specially curated gallery of tattoo designs, curated by various tattoo artists also using the interface, and chosen specifically as a good representation of well-designed tattoos. Each design is also tagged with labels such as category of tattoo (e.g. Japanese, tribal etc), and may also have a simple star rating system.
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Design 2 - Handheld Browsing
This design was designed as a stretch for a mobile device.
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Here, the interface focuses mostly on browsing actual tattoo designs. In this way, the user will be able to formulate a realistic idea of what tattoos are like, and be able to not only be on the right track to find a suitable artist to match his preferences, but also be more educated on the different styles of tattoos. Note that the user will also be able to do a more specific browse using the Search function, if for example he knows he is into say Tribal tattoos, and wants more inspiration.
Design 3 - Construction 
My third design focuses on learning by doing.
To give the novice user a good idea of tattoo designs, he first faces a blank canvas on the right, and a series of tabbed windows on the left, in this interface. The tabbed windows on the left helps the user learn about tattoo design and kickstarts him into thinking about the tattoo design process.
After learning about the basics of tattoo design in the first tab, the user can choose a template to begin his design. In this example, the user has chosen a rose as a good basis to start this design. These templates are carefully chosen by tattoo artists to make sure they are good designs. The user can use Randomize to browse randomly if he doesn't know what he likes.
After that, the user can use a variety of tools like Brushes or Shapes, to add common designs. This will allow the user to add complexity to his design. In addition, in his canvas, he can use tools like draw, erase, or text to add to his design. This allows the user to begin thinking about his first tattoo so he can speed up the first meeting with his tattoo artist to make the process fast.