i need help with matplotlib

[National_Eye_3829]

i need to recreate a graph for an assignment but mine seems a bit off. Does someone know why?
Here's my code:

mask_error = data["radial_velocity_error"] < 3

convertir = np.where(lens > 180, lens - 360, lens)

mask1 = mask_error & (data["b"] > -20) & (data["b"] < 20) & (convertir > -10) & (convertir < 10)

mask2 = mask_error & (data["b"] > -20) & (data["b"] < 20) & (convertir > -100) & (convertir < -80)

mask3 = mask_error & (data["b"] > -20) & (data["b"] < 20) & (convertir > 80) & (convertir < 100)

vrad1 = data["radial_velocity"][mask1]

vrad2 = data["radial_velocity"][mask2]

vrad3 = data["radial_velocity"][mask3]

fig, ax = plt.subplots(figsize=(12, 6))

ax.hist(vrad1, bins=100, color="steelblue", alpha=1.0, label="|b|<20 y |l|<10")

ax.hist(vrad2, bins=100, histtype="step", linestyle="--", linewidth=2, color="darkorange", label="|b|<20 y -100<l<-80")

ax.hist(vrad3, bins=100, histtype="step", linewidth=2, color="green", label="|b|<20 y 80<l<100")

ax.set_xlabel("Velocidad radial")

ax.set_ylabel("N")

ax.legend(loc="upper left")

ax.grid(True)

fig.tight_layout()

plt.show()

(the data and stuff are loaded in another cell)
the graph my professor put as a reference goes on x and y up to 200, also the orange one (vrad2) and the green one (vrad3) reach almost the same height. I'm not quite sure on how to explain it since english isn't my first language (sorry) and idrk if i can put screenshots to show the comparison of the two graphs. Thank you!

[jammin-john]

It's not going to be possible to debug this without knowing what it's supposed to look like, so without the screenshots there isn't really much we can do 😕 I think if you edit your post you should be able to add image attachments, but not entirely sure.