Your elevation looks good. This is almost certainly position, not gear.
how tall is your bipod? If it's a 12", just use a pack. If it's a 2', then take a knee, shoulder the rifle and gently lean into the bipod until you start to feel tension.(loading) I think with the feet in he dirt/grass your results will be better. Try to use bone structure to help steady your position as well. Do NOT put your elbow tip directly on your knee cap. Try to place it between the knee cap and your quad or your tricep off the inner leg. If you know how to use a sling on your non-dominant arm, this can really help too. Focus on your breath control (not go in to be easy if a Boone and Crocket is 100 yards out) and follow through. You're probably not going to shoot bug holes from field positions but basic bone structure, simple bipod technique and your fundamentals will almost certainty lead to a successful hunt.
edit. Once you have some practice in, be realistic about the distance you can ethically take an animal. Stalking in to safe shooting range takes way more skill than benchresting your gear and dropping one 500 yards out.
congratulations. I hope you have a great hunt.