nice idea, and like the flower theme
While i like the yellow font, it might be overshadowed by the flowers especially as its a light color on a white background, I could be wrong but always have a feeling the title is the 1st thing that catches the looker's eye.
If you need help deciding a font color, you can maybe check color palettes on google, search for eg. "color palette violet pink yellow green" and see what images come up, might find nice combinations with other colors that can be used for the fonts. The font style is awesome indeed with sharpie marker feel!
if it's a cover you may want to also work within the cover dimensions 960 width 1440 height
see link with Tapas dimensions:
Keep in mind, as your title is a wide composition it would become smaller on cover, but would look great as banner
Keep up the good work and all the best
