matplotlib graph legend is in reverse order (barh)

I have 15 graphs that looks like this:

enter image description here

As you see, the legend is in reverse order. I want to see 4 first, below that 3 etc.

My code:

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
def plot_bars_by_data(data, title):
    fig, axs = plt.subplots(8,2, figsize=(20,40))
    fig.suptitle(title, fontsize=20)
    plt.rcParams.update({'font.size': 13})

    column_index = 0
    for ax_line in axs:
        for ax in ax_line:
            if column_index < len(data.columns): 
                column_name = data.columns[column_index]
                current_column_values = data[column_name].value_counts().sort_index()
                axx = ax.barh([str(i) for i in current_column_values.index], 
                              color=[colors[i] for i in range(data[column_name].value_counts().count())])
                ax.legend(axx, [str(i) for i in current_column_values.index])
                column_index +=1

# random data
df_test = pd.DataFrame([np.random.randint(2,5,size=15) for i in range(15)], columns=list('abcdefghijlmnop'))
plot_bars_by_data(df_test, "testing")

I tried to just reverse the legend list, but it is reversing the colors as well. I'm using Python 3.6 in Jupyter python notebook. Any ideas?