I think color will add lots to the image, I'd really like to see that.
I like the stylized fade on the lineart and how the underline is distinctive, though it could be cleaned up on the dinosaur's neck. A bit of AA and less contrast with color on the eyes, I think they stand out too much now.
Cute style, everything about this is adorable, including the text.
Edit: First post! Been lurking here for a couple of months now.