Trying to merge the two pictures (like in the picture), have tryed different brushes, nothimg seem to give anything similar. What do you use to get this effect?
Looks like a watercolour brush effect using something like a Wacom tablet and pressure sensitive pen.
Nevertheless, still doable to some degree with a mouse and standard Photoshop setup.
Using the Mixer Brush Tool B on a Vector Mask and playing around with brush settings, I got this example done in around 30 seconds.
There are plenty of free brushes available similar to the effect used in your example, so you should be able to recreate it with no issues at all.
Fill a layer with a solid color.
Filter > Render > Fibers and play with the setting to get a generally dense set of fibers. And then click
Rotate the fibers 90°. Use the Magic Wand Tool with
Contiguous unchecked and click an area or two of the lighter tones and hit delete. This will create gaps in the fibers.
Add a new layer, fill it with a gradient from the solid color to transparent. And position both layers near where you want the drop off. Add a layer mask to the fiber layer and add a black to white gradient on the right side of the fibers to make the right edge softer.
Add your photo under these two layers.
Refine as desired.