Use the Go Advanced option below the reply dialog box. Select the paper clip icon. Be sure to resize your photos so they fit nicely in the thread. I usually go no bigger than 800px wide.
Your pictures are WAY too big to view in the forum. And too indistinct to tell anything at all, escept it looks like you've got something (foam?) in the upper wall-ceiling corners?
What's the size of the room? Make a drawing showing the floor plan and what equipment you've got in it.
Then, before going any further, build/buy bass traps (not foam) for all the corners.
I'll help you out with the resizing so other can advise you easier.
They are possibly the worst photos I've seen uploaded here. I don't even know what 2 of them are supposed to show. Your desk is not in a good place. Get it out of the corner and in the centre of a wall, preferably facing down the longest way.
Yep in this case a drawing of the plan of the room would really help as well (with dimensions). It is difficult to tell what is going on form the angle of the photographs. With room acoustics first thing to get right is the positioning of your desk and there muist be a better place for it than there is currently.
This video will help - Positioning the Listening Spot - GIK Acoustics
Yep, gotta start by getting your listening position out of the corner. Get us a layout/floorplan. High ceilings, loft, lots of corners. Looks like FUN!