Rittenhouse Venus

I came up with a character for a one week assignment when the class took a trip to Rittenhouse. I liked her so much that I decided to do a second painting and use her for postcards. Only problem is that I recently looked up one of my favorite artists and noticed that one of his pieces have close to the same character. They aren't identical, but they have the same colors and everything! What do I do!? D:
I still want to use her! The first picture is the one I painted for the postcard, the second two are the original piece I did of this character and the piece that was made by Dave Glass.