More people posting here are women, FYI.

To advise you on this window, we would need to know your goals. What room does this window serve? Do you need light, ventilation, noise control, security from intruders? Will this window be glazed? Where is the structural header and can it be altered? How does the rest of the facade look, where are you located, is it important to coordinate with the style of dwellings nearby? What direction does the window face and is it shaded by other buildings or trees at any time of day?

Kindly change the window , below down the sill level and curve the window top vertical into shape of your lintel profile, atleast that will go well. At current these two things looks cross matched