Please help identify these shrubs

[HecateL]

Hi everyone! We just moved here in our new house in Bella Vista, Arkansas. I'm doing some spring yard cleaning and I saw these plants, are they all weed? If so, we may have to remove everything and redo the entire bed.. I will appreciate any input in this.
Thank you.

 

[DrCase]

The tall tree like plants are trash trees , I would pull them up
I see 3 shrubs , the big mounds, every thing else is a weed

 

[Marck]

Greetings, welcome to the Forums.

Those sapling trees are Eastern Black Walnut (Juglans nigra), probably planted by squirrels.