Aries Design: Truly Aries, or actually based on Capricorn?

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Although it could have been written by (one of) the author(s) or artist(s), the month names 100% post-date the Zodiac drawing and colouring.
The month names are sometimes placed near the circumference (Scorpio, Sagittarius), other times towards the middle (Pisces), sometimes to the side (Virgo). It would be odd to do such a thing unless the scribe already had a placement/layout in mind, which is not impossible but, it looks consistent with someone trying to fill the names inside a blank space, carefully avoiding the drawings as best they can.
However, some of the letter strokes do partially overlap with the drawings, and it looks like they sit on top of the outline + painting:
   
Plus there's the fact that the stroke width is wider than the body of text and illustrations, and the letterforms don't resemble the You are not allowed to view links. Register or Login to view. and You are not allowed to view links. Register or Login to view. marginalia for the most part -- which seem to be the earliest marginalia in the ms.