So with Generation VI and onwards having an overall theme with their starters, I figured that it would be interesting to hear what kind of starter Pokemon you would make that would have a certain theme attached to it. Here's my example of a batch of starters:

The theme of the starter Pokemon is Art

The Grass-type is essentially the Bob Ross of the group, being inspired by nature and would make pieces of art that calms down people and Pokemon alike.

The Water-type is a mixture of calligraphy and watercolor, creating beautiful pieces with as few strokes as possible and using soft colors to create vibrant works of art.

The Fire-type would use charcoal to mark its territory, and the leader of a pack is the one with the largest piece of charcoal.