Park Trees in Sepia

A few days ago it was very nice and sunny out so sat in the park and drew for a while.  I was inspired by the surroundings but did my own thing with them in sepia.  I would like to play around with them in photoshop to see what different effects I can come up with.   

I drew this one first and added my own flowers.  Too cold yet for the flowers to be blooming, roses anyway, I forgot it is nearly April now and I do have purple hyacinths coming up in my front yard.   Think I will watercolor this one.