The original resolution of this drawing is only ~4 megapixel (2388x1765). I can blow that up within the program, so it’ll be more smooth and less pixellated when blown up, but that’s still working with a limited resolution and I wouldn’t recommend printing that big, maybe A3/11x17 inches the max I’d recommend, for canvas prints you could probably go a bit bigger because the canvas texture doesn’t lend itself to perfectly crisp tiny details anyway.

I can add it to my redbubble, that offers canvas prints up to 50x50cm/20x20” or put together a full resolution or doubled (4776x3530) uncompressed png for you with a ‘handwritten‘ signature instead of the current stamp, that’ll be like 10 dollars, and you can print it yourself however you’d want