The Adventure Lab Cache, Southwest Houston Murals, should have led you to this bonus. The five murals should supply the coordinates: 29 AB.CDE 95 FG.HIJ. As you sign this log for this bonus cache, be sure to note the coordinates at the top of this log. They will take you to one additional mural. It is a bit different. This is the only mosaic mural in the group. The picture is a thumbnail shot of the mural. Unfortunately I do not have information on the creator of this art work.
If you enjoyed the murals and want more, here are the 10 additional CHAT murals. The coordinates will take you to them if you are interested.
Moment of Brilliance 29 42.225 95 29.189
Celebrating Diversity 29 42.983 95 29.310
Garden of Paradise 29 42.471 95 30.048
Introspection of Self Reflection 29 42.520 95 29.082 Two murals
All Your Dreams Come True 29 43.311 95 30.078 Probably missing
Harvey 29 42.355 95 29.198
Worlds Collide 29 43.020 95 29.337
There is so Much to Explore 29 42.215 95 29.837 Two murals
Infinite Future 29 42.316 95 29.957
Fun 29 42.487 95 30.354
Have fun and enjoy the art!
T